Sabotage on the Saniana
The Saniana is in red alert! An unknown saboteur has locked the main engines. Captain Joshua Dax Zeno needs you to crack the codes and unmask the rogue cadet before the ship drifts into the asteroid belt.
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
| Name | battle station | tactical gear | writing hand | helmet style | toy distraction |
|---|---|---|---|---|---|
| Cadet Reed | Laser Turret | Blast Shield | Left Handed | Visor Raised | Bubble Blasters |
| Cadet Flint | Laser Turret | Walkie Talkie | Left Handed | Visor Lowered | Squeaky Toys |
| Cadet Nyx | Engine Room | Walkie Talkie | Right Handed | Visor Raised | Bubble Blasters |
| Cadet Chase | Radar Dome | Blast Shield | Left Handed | Visor Lowered | Foam Darts |
| Cadet Vega | Bridge Control | Laser Pointer | Right Handed | No Helmet | Squeaky Toys |
| Cadet Gemma | Bridge Control | Grappling Hook | Right Handed | No Helmet | Bubble Blasters |
| Cadet Astra | Flight Deck | Grappling Hook | Right Handed | No Helmet | Bubble Blasters |
| Cadet Jett | Laser Turret | Blast Shield | Right Handed | Visor Lowered | Foam Darts |
| Cadet Ryder | Bridge Control | Blast Shield | Right Handed | Visor Lowered | Squeaky Toys |
| Cadet Echo | Radar Dome | Rocket Boots | Right Handed | No Helmet | Squeaky Toys |
| Cadet Leo | Radar Dome | Blast Shield | Left Handed | Visor Lowered | Bubble Blasters |
| Cadet Nova | Radar Dome | Walkie Talkie | Right Handed | Visor Raised | Foam Darts |
| Cadet Skye | Laser Turret | Blast Shield | Right Handed | No Helmet | Foam Darts |
| Cadet Zev | Engine Room | Blast Shield | Right Handed | Visor Lowered | Squeaky Toys |
| Cadet Hugo | Laser Turret | Blast Shield | Left Handed | Visor Lowered | Bubble Blasters |
| Cadet Pax | Engine Room | Rocket Boots | Right Handed | Visor Lowered | Foam Darts |
| Cadet Bolt | Laser Turret | Laser Pointer | Right Handed | Visor Lowered | Bubble Blasters |
| Cadet Orion | Bridge Control | Blast Shield | Right Handed | Visor Lowered | Foam Darts |
| Cadet Milo | Engine Room | Walkie Talkie | Right Handed | Visor Lowered | Foam Darts |
| Cadet Lyra | Laser Turret | Grappling Hook | Right Handed | Visor Lowered | Foam Darts |
| Cadet Jax | Laser Turret | Blast Shield | Right Handed | No Helmet | Squeaky Toys |
Addition
Captain Joshua Dax Zeno needs to count the emergency rations left in storage. Add the crates of space biscuits to the crates of freeze-dried apples to find our first coordinate.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Subtraction
The Saniana is taking on space water from a leaky pipe in the cargo hold. Subtract the gallons pumped out from the total leak to see how much water remains.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Multiplication facts (1-12)
We need to pack energy cells into the defense grid launcher. Multiply the number of rows by the number of cells in each row to find the power level.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Fractions of a number
The radar sweep detected a cluster of rogue scrap metal blocking our path. Find the fraction of the scrap that we need to target with our lasers to clear the way safely.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Fractions of a number — the last clue
Our robotic defense bots need a battery charge to patrol the lower decks. Calculate the fractional share of the remaining energy cells each bot will receive.
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!
Name the culprit
Choose the one suspect left standing.
Answer Key — Sabotage on the Saniana
- Clue 1 (Addition): "THE CADET DOES NOT USE ROCKET BOOTS"4291 + 4542 = 8833 (T) · 3064 + 3643 = 6707 (E) · 2133 + 1653 = 3786 (N) · 5027 + 3001 = 8028 (D) · 5992 + 3640 = 9632 (S) · 2773 + 2960 = 5733 (A) · 2236 + 1930 = 4166 (H) · 3713 + 5735 = 9448 (K) · 3554 + 1746 = 5300 (B) · 1530 + 2776 = 4306 (C) · 1677 + 3162 = 4839 (O) · 1655 + 2763 = 4418 (U) · 4467 + 2594 = 7061 (R)
- Clue 2 (Subtraction): "THE SUSPECT WROTE WITH THE RIGHT HAND"11775 - 4685 = 7090 (T) · 8470 - 1850 = 6620 (G) · 10396 - 2496 = 7900 (D) · 12494 - 4492 = 8002 (N) · 5834 - 2162 = 3672 (O) · 8415 - 2793 = 5622 (U) · 6869 - 4497 = 2372 (A) · 7759 - 597 = 7162 (C) · 9927 - 4394 = 5533 (W) · 8655 - 2196 = 6459 (P) · 6251 - 2984 = 3267 (I) · 10250 - 3887 = 6363 (S) · 11010 - 2757 = 8253 (R) · 3583 - 163 = 3420 (E) · 3852 - 1935 = 1917 (H)
- Clue 3 (Multiplication facts (1-12)): "THE CADET WAS FOILED BY FOAM DARTS"5 × 6 = 30 (T) · 12 × 12 = 144 (I) · 4 × 7 = 28 (C) · 1 × 2 = 2 (W) · 5 × 9 = 45 (L) · 7 × 12 = 84 (E) · 5 × 7 = 35 (D) · 5 × 5 = 25 (R) · 8 × 8 = 64 (F) · 11 × 12 = 132 (M) · 8 × 12 = 96 (A) · 7 × 11 = 77 (H) · 11 × 5 = 55 (O) · 9 × 9 = 81 (B) · 10 × 1 = 10 (S) · 10 × 6 = 60 (Y)
- Clue 4 (Fractions of a number): "THE CADET HAD A LOWERED VISOR"4/8 of 68 = 34 (T) · 2/10 of 85 = 17 (R) · 2/4 of 42 = 21 (E) · 6/8 of 44 = 33 (A) · 1/3 of 108 = 36 (O) · 1/5 of 50 = 10 (D) · 1/8 of 24 = 3 (H) · 3/6 of 80 = 40 (C) · 1/4 of 152 = 38 (I) · 1/10 of 140 = 14 (V) · 4/8 of 16 = 8 (L) · 5/10 of 24 = 12 (S) · 1/3 of 117 = 39 (W)
- Clue 5 (Fractions of a number): surviving statement (box 7) → Cadet Milo2/10 of 30 = 6 · 4/8 of 4 = 2 · 2/6 of 33 = 11 · 1/8 of 72 = 9 · 3/10 of 10 = 3 · 1/6 of 72 = 12 · 2/8 of 4 = 1 · 2/4 of 20 = 10 · 2/10 of 40 = 8 · 4/8 of 8 = 4 · 2/4 of 10 = 5
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Addition, Subtraction, Multiplication, Fractions of a number
- Reading level
- grades 5-6
- Theme
- Sabotage on the Saniana — set in The high-tech command deck of the kid warship Saniana
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects