🔎 JimothyGrade 4Reading: grades 3-4SubtractionMultiplicationWord problemsMulti-step word problemsMissing addends
The Great Jimothy Toy Factory Mystery
Someone snuck into Jimothy's Gizmo Factory and swapped the secret Golden Gear with a fake potato! Work through the clues to track down the culprit.
Suspects
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
21 of 21 still in play
| Name | Gadget | Disguise | Stance | Hat Color | Distraction |
|---|---|---|---|---|---|
| Silly Sam | Grapple Hook | Moustache Mask | Right Handed | Red Helmet | Squeaky Toys |
| Drill Dan | Rocket Skates | Neon Cape | Right Handed | Red Helmet | Silly Songs |
| Welder Wendy | Grapple Hook | Glitter Cloak | Right Handed | Red Helmet | Squeaky Toys |
| Gasket Gail | Bubble Cannon | Neon Cape | Left Handed | Red Helmet | Squeaky Toys |
| Solder Sid | Grapple Hook | Neon Cape | Left Handed | Red Helmet | Bright Lights |
| Riveter Rosa | Bubble Cannon | Neon Cape | Right Handed | Green Beanie | Squeaky Toys |
| Valve Vance | Bubble Cannon | Moustache Mask | Right Handed | Red Helmet | Squeaky Toys |
| Screwy Sue | Grapple Hook | Giant Box | Left Handed | Blue Cap | Bright Lights |
| Lathe Lou | Rocket Skates | Robot Suit | Left Handed | Red Helmet | Squeaky Toys |
| Tinker Tim | Rocket Skates | Glitter Cloak | Left Handed | Green Beanie | Bright Lights |
| Sparky Stan | Grapple Hook | Neon Cape | Right Handed | Red Helmet | Silly Songs |
| Bolt Ben | Laser Yo Yo | Robot Suit | Right Handed | Red Helmet | Squeaky Toys |
| Inventor Ike | Grapple Hook | Moustache Mask | Left Handed | Green Beanie | Silly Songs |
| Gauge Gina | Magnet Glove | Robot Suit | Left Handed | Blue Cap | Bright Lights |
| Baker Bob | Laser Yo Yo | Neon Cape | Right Handed | Red Helmet | Bright Lights |
| Robo Rita | Laser Yo Yo | Moustache Mask | Right Handed | Red Helmet | Bright Lights |
| Widget Wanda | Rocket Skates | Neon Cape | Right Handed | Green Beanie | Bright Lights |
| Mechanic Meg | Rocket Skates | Giant Box | Right Handed | Red Helmet | Squeaky Toys |
| Gears Gary | Rocket Skates | Glitter Cloak | Right Handed | Green Beanie | Squeaky Toys |
| Jimothy Jr | Laser Yo Yo | Giant Box | Left Handed | Red Helmet | Bright Lights |
| Piston Pete | Magnet Glove | Glitter Cloak | Right Handed | Green Beanie | Squeaky Toys |
Clue 1
Subtraction
Jimothy counted the inventory on the assembly line and subtracted the missing parts to narrow down the suspects.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
5243
2596
8453
3085
1971
7687
7687
5087
1971
3266
4474
5416
8453
7906
3266
5416
T
5243
8912
8453
5087
7757
5087
8081
1971
5087
3266
T
5243
7208
5416
6284
5817 - 574 =T
11227 - 3540 =L
11319 - 2407 =W
9408 - 1502 =S
5202 - 1936 =N
5932 - 1458 =D
9514 - 2306 =B
8561 - 3145 =O
8431 - 350 =G
3914 - 1943 =I
8548 - 95 =E
5568 - 2483 =V
4971 - 2375 =H
6523 - 1436 =A
8227 - 1943 =X
7867 - 110 =R
0/16 letters found
Clue 2
Multiplication facts (1-12)
The security guard checked four rows of lockers with equal numbers of shelves to find a hidden hint.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
49
28
66
108
11
48
48
22
11
77
21
22
55
55
56
70
T
49
T
49
66
10
4
55
11
77
90
32
11
90
28
T
49
28
22
77
10
7 × 7 =T
7 × 10 =O
7 × 11 =N
1 × 11 =I
9 × 12 =V
8 × 7 =P
4 × 8 =R
1 × 4 =U
10 × 9 =G
4 × 12 =L
4 × 7 =H
5 × 11 =S
11 × 2 =A
5 × 2 =D
11 × 6 =E
7 × 3 =W
0/16 letters found
Clue 3
Word problems
Jimothy asked the factory workers how many cog wheels each person packed during their morning shift.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Someonescaredthevillainoffwith .
S
53
9
71
80
77
70
48
T
O
48
S
53
There were 84 gizmo boxes. 31 were used up. How many gizmo boxes are left?S
Jimothy found 8 cog wheels yesterday and 72 more today. How many cog wheels in all?E
There were 16 toy robots. 7 were used up. How many toy robots are left?Q
Jimothy lined up 10 rows of 7 gizmo boxes. How many gizmo boxes in all?K
Jimothy found 74 springs yesterday and 3 more today. How many springs in all?A
Jimothy found 42 brass bolts yesterday and 6 more today. How many brass bolts in all?Y
Jimothy found 64 gizmo boxes yesterday and 7 more today. How many gizmo boxes in all?U
0/7 letters found
Clue 4
Multi-step word problems
To clear more names, Jimothy tallied the total gear shipments and subtracted the delivered boxes.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Astrandofhairturnedupatthescene.
R
8
14
43
48
14
39
52
14
26
There were 34 brass bolts in all. 2 Assembly Crew used 5 brass bolts each. The other 3 Assembly Crew shared the rest equally. How many brass bolts did each of the other Assembly Crew get?R
There were 176 springs in all. 4 Assembly Crew used 5 springs each. The other 6 Assembly Crew shared the rest equally. How many springs did each of the other Assembly Crew get?T
Jimothy earned 5 springs in each of 6 rounds, plus 19 bonus springs. Then 10 springs were lost. How many springs are left?L
Jimothy collected 10 gizmo boxes in the morning and 18 gizmo boxes in the afternoon, then split them equally among 2 Assembly Crew. How many gizmo boxes did each get?E
Jimothy earned 3 gizmo boxes in each of 2 rounds, plus 47 bonus gizmo boxes. Then 10 gizmo boxes were lost. How many gizmo boxes are left?D
Jimothy filled 4 boxes with 8 springs each, then found 16 more springs. How many springs are there in all?H
Jimothy earned 7 brass bolts in each of 5 rounds, plus 19 bonus brass bolts. Then 2 brass bolts were lost. How many brass bolts are left?M
0/7 letters found
Clue 5
Missing addends — the last clue
Jimothy looked at the balance scale to find the missing weight needed to open the safe.
First solve each problem. Then find each answer in the list below and cross that sentence out. One sentence will be left — that's exactly what the villain did!
Step 1 — solve these
33 + ___ = 43
12 + ___ = 15
39 + ___ = 43
23 + ___ = 28
23 + ___ = 34
3 + ___ = 5
6 + ___ = 15
7 + ___ = 19
14 + ___ = 21
28 + ___ = 36
3 + ___ = 4
Step 2 — cross out the sentence with each answer
1.The villain pulled the lever with a magnet glove, then stomped past in a robot suit.
2.The villain pulled the lever with a magnet glove, then vanished under a glitter cloak.
3.The villain zapped the vault with a laser yo yo, then stomped past in a robot suit.
4.The villain swung across using a grapple hook, then vanished under a glitter cloak.
5.The villain pulled the lever with a magnet glove, then hid behind a moustache mask.
6.The villain blasted foam from a bubble cannon, then hid behind a moustache mask.
7.The villain blasted foam from a bubble cannon, then stomped past in a robot suit.
8.The villain zapped the vault with a laser yo yo, then hid behind a moustache mask.
9.The villain swung across using a grapple hook, then stomped past in a robot suit.
10.The villain swung across using a grapple hook, then hid behind a moustache mask.
11.The villain zoomed away on rocket skates, then hid behind a moustache mask.
12.The villain pulled the lever with a magnet glove, then ducked inside a giant box.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Jimothy Toy Factory Mystery
Culprit: Valve Vance (Bubble Cannon · Moustache Mask · Right Handed · Red Helmet · Squeaky Toys)
- Clue 1 (Subtraction): "THE VILLAIN DOES NOT WEAR A GIANT BOX"5817 - 574 = 5243 (T) · 11227 - 3540 = 7687 (L) · 11319 - 2407 = 8912 (W) · 9408 - 1502 = 7906 (S) · 5202 - 1936 = 3266 (N) · 5932 - 1458 = 4474 (D) · 9514 - 2306 = 7208 (B) · 8561 - 3145 = 5416 (O) · 8431 - 350 = 8081 (G) · 3914 - 1943 = 1971 (I) · 8548 - 95 = 8453 (E) · 5568 - 2483 = 3085 (V) · 4971 - 2375 = 2596 (H) · 6523 - 1436 = 5087 (A) · 8227 - 1943 = 6284 (X) · 7867 - 110 = 7757 (R)
- Clue 2 (Multiplication facts (1-12)): "THE VILLAIN WAS SPOTTED USING RIGHT HAND"7 × 7 = 49 (T) · 7 × 10 = 70 (O) · 7 × 11 = 77 (N) · 1 × 11 = 11 (I) · 9 × 12 = 108 (V) · 8 × 7 = 56 (P) · 4 × 8 = 32 (R) · 1 × 4 = 4 (U) · 10 × 9 = 90 (G) · 4 × 12 = 48 (L) · 4 × 7 = 28 (H) · 5 × 11 = 55 (S) · 11 × 2 = 22 (A) · 5 × 2 = 10 (D) · 11 × 6 = 66 (E) · 7 × 3 = 21 (W)
- Clue 3 (Word problems): "SQUEAKY TOYS"There were 84 gizmo boxes. 31 were used up. How many gizmo boxes are left? = 53 (S) · Jimothy found 8 cog wheels yesterday and 72 more today. How many cog wheels in all? = 80 (E) · There were 16 toy robots. 7 were used up. How many toy robots are left? = 9 (Q) · Jimothy lined up 10 rows of 7 gizmo boxes. How many gizmo boxes in all? = 70 (K) · Jimothy found 74 springs yesterday and 3 more today. How many springs in all? = 77 (A) · Jimothy found 42 brass bolts yesterday and 6 more today. How many brass bolts in all? = 48 (Y) · Jimothy found 64 gizmo boxes yesterday and 7 more today. How many gizmo boxes in all? = 71 (U)
- Clue 4 (Multi-step word problems): "RED HELMET"There were 34 brass bolts in all. 2 Assembly Crew used 5 brass bolts each. The other 3 Assembly Crew shared the rest equally. How many brass bolts did each of the other Assembly Crew get? = 8 (R) · There were 176 springs in all. 4 Assembly Crew used 5 springs each. The other 6 Assembly Crew shared the rest equally. How many springs did each of the other Assembly Crew get? = 26 (T) · Jimothy earned 5 springs in each of 6 rounds, plus 19 bonus springs. Then 10 springs were lost. How many springs are left? = 39 (L) · Jimothy collected 10 gizmo boxes in the morning and 18 gizmo boxes in the afternoon, then split them equally among 2 Assembly Crew. How many gizmo boxes did each get? = 14 (E) · Jimothy earned 3 gizmo boxes in each of 2 rounds, plus 47 bonus gizmo boxes. Then 10 gizmo boxes were lost. How many gizmo boxes are left? = 43 (D) · Jimothy filled 4 boxes with 8 springs each, then found 16 more springs. How many springs are there in all? = 48 (H) · Jimothy earned 7 brass bolts in each of 5 rounds, plus 19 bonus brass bolts. Then 2 brass bolts were lost. How many brass bolts are left? = 52 (M)
- Clue 5 (Missing addends): surviving statement (box 6) → Valve Vance33 + ___ = 43 = 10 · 12 + ___ = 15 = 3 · 39 + ___ = 43 = 4 · 23 + ___ = 28 = 5 · 23 + ___ = 34 = 11 · 3 + ___ = 5 = 2 · 6 + ___ = 15 = 9 · 7 + ___ = 19 = 12 · 14 + ___ = 21 = 7 · 28 + ___ = 36 = 8 · 3 + ___ = 4 = 1
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Subtraction, Multiplication, Word problems, Multi-step word problems, Missing addends
- Reading level
- grades 3-4
- Theme
- The Great Jimothy Toy Factory Mystery — set in Jimothy's Gizmo Factory
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects