Math Crackers
🐉 DragonsGrade 4Reading: grades 7-9AdditionMultiplicationRoundingSubtractionDivision

The Dragon Crown Caper

Someone tamed a wild shadow dragon and snuck into the High-Aerie Dragon Sanctuary, snatching the ancient Dragon Crown. You must decode the clues left behind to identify the rogue tamer.

Suspects

Possible suspects

Cross off a row as each clue rules it out. On screen, tap a row.

21 of 21 still in play
NamePrimary BreathSaddle GearRiding HandCrest StyleMagic Bait
Rider TalonLightning SparksGold StirrupsLeft-handedBraided ManeStar Crystal
Lady CinderLightning SparksRuby BridleRight-handedSpiky HornsFirefruit
Baron VapourFrost BreathIron ChainsRight-handedSpiky HornsFirefruit
Warden DrakeFrost BreathSilk ReinsLeft-handedBraided ManeFirefruit
Ranger GaleSonic RoarGold StirrupsRight-handedSpiky HornsStar Crystal
Rider ScorpiosFrost BreathGold StirrupsRight-handedFeathered CrestStar Crystal
Commander SparksFrost BreathRuby BridleRight-handedBraided ManeStar Crystal
Baron FlintFrost BreathGold StirrupsRight-handedFeathered CrestFirefruit
Captain IgnisEmerald FlameGold StirrupsRight-handedFeathered CrestFirefruit
Warden FrostLightning SparksRuby BridleLeft-handedSpiky HornsFirefruit
Commander EmberMagma BlastSilk ReinsRight-handedSpiky HornsFirefruit
Master OnyxLightning SparksLeather HarnessRight-handedBraided ManeMoonbell Herb
Commander CharMagma BlastGold StirrupsRight-handedSpiky HornsFirefruit
Ranger SolSonic RoarRuby BridleRight-handedFeathered CrestFirefruit
Lady ObsidianMagma BlastLeather HarnessLeft-handedSpiky HornsStar Crystal
Master SmokeyMagma BlastLeather HarnessRight-handedSpiky HornsMoonbell Herb
Rider StormFrost BreathLeather HarnessLeft-handedFeathered CrestStar Crystal
Baron WyvernMagma BlastLeather HarnessRight-handedSpiky HornsFirefruit
Master PyroFrost BreathLeather HarnessLeft-handedFeathered CrestMoonbell Herb
Lady FlareFrost BreathLeather HarnessRight-handedBraided ManeFirefruit
Ranger AshFrost BreathRuby BridleRight-handedFeathered CrestFirefruit
Clue 1

Addition

To calculate the total weight of missing dragon scales found near the vault entrance, the keep wardens tallied up two separate batches of evidence.

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
5642
3922
4836
9853
7611
9244
9244
7242
7611
9549
4171
3603
4836
5337
9549
3603
T
5642
7630
5337
4836
7611
7307
3603
9549
7734
3922
7242
7611
9549
5337
2146 + 3496 =T
1406 + 2765 =D
3588 + 1749 =S
1753 + 1850 =O
3291 + 1545 =E
3094 + 4640 =C
5486 + 3758 =L
1754 + 2168 =H
4871 + 2371 =A
4341 + 3289 =U
6367 + 3486 =V
5549 + 4000 =N
4872 + 2739 =I
3784 + 3523 =R
0/14 letters found
Clue 2

Multiplication facts (1-12)

The flight master examined the roosting towers, calculating the total dragon perches by counting identical rows across all five eastern parapets.

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
90
44
1
5
27
T
90
11
1
8
8
8
96
5
96
54
27
88
44
T
90
44
96
11
12
1
12
54
27
12
1
54
20
3
30
10 × 9 =T
9 × 6 =R
10 × 2 =F
8 × 11 =G
6 × 2 =D
1 × 11 =N
10 × 3 =Y
12 × 8 =A
3 × 9 =I
3 × 1 =L
1 × 8 =S
1 × 1 =E
5 × 1 =W
11 × 4 =H
0/14 letters found
Clue 3

Rounding

An ancient scrying orb registered the dragon flyer altitude, displaying a rough rounded estimate on the sanctuary defensive crystal.

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
200
1700
700
5000
700
370
70
T
200
30
370
70
300
370
110
1100
700
2300
5000
900
70
30
700
700
T
200
1300
9000
430
700
1300
430
130
9000
T
200
Round 248 to the nearest hundredT
Round 277 to the nearest hundredC
Round 1,345 to the nearest hundredF
Round 1,721 to the nearest hundredH
Round 370 to the nearest tenA
Round 426 to the nearest tenR
Round 680 to the nearest hundredE
Round 871 to the nearest hundredY
Round 131 to the nearest tenU
Round 1,112 to the nearest hundredM
Round 2,270 to the nearest hundredD
Round 67 to the nearest tenS
Round 107 to the nearest tenL
Round 4,666 to the nearest thousandB
Round 32 to the nearest tenW
Round 9,400 to the nearest thousandI
0/16 letters found
Clue 4

Subtraction

By subtracting the remaining barrels of dragon feed from yesterday shipment, the vault keepers determined how much food the thief stole.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

S
2838
2651
5330
3739
1409
6122
4618
2389
4595
S
2838
6465
1081
4717
2881
S
2838
6122
7710
2389
5770
S
2838
7710
2881
2881
6122
1081
S
2838
4509
1081
4595
1081
5227 - 2389 =S
3234 - 845 =R
7184 - 1062 =H
4706 - 967 =K
6877 - 412 =L
8723 - 4105 =O
3050 - 1641 =Y
6837 - 2120 =F
8162 - 3567 =N
9926 - 4596 =I
6791 - 4140 =P
6389 - 1880 =C
7918 - 208 =A
3361 - 2280 =E
5341 - 2460 =T
6092 - 322 =D
0/16 letters found
Clue 5

Division facts (1-12) — the last clue

The sanctuary guards split the remaining search patrols evenly across the canyon sectors to track down the airborne getaway.

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
21 ÷ 7 = ?
96 ÷ 8 = ?
45 ÷ 9 = ?
2 ÷ 1 = ?
55 ÷ 5 = ?
14 ÷ 2 = ?
88 ÷ 11 = ?
11 ÷ 11 = ?
24 ÷ 4 = ?
70 ÷ 7 = ?
44 ÷ 11 = ?
Step 2 — cross out the sentence with each answer
1.The villain stunned the watchers with a sonic roar, then secured the crown with gold stirrups.
2.The villain stunned the watchers with a sonic roar, then strapped the crate using a leather harness.
3.The villain melted the vault floor with a magma blast, then flew off silently with silk reins.
4.The villain stunned the watchers with a sonic roar, then bound the treasure in iron chains.
5.The villain melted the vault floor with a magma blast, then strapped the crate using a leather harness.
6.The villain blasted through the gates with frost breath, then secured the crown with gold stirrups.
7.The villain shocked the guards with lightning sparks, then bound the treasure in iron chains.
8.The villain stunned the watchers with a sonic roar, then flew off silently with silk reins.
9.The villain melted the vault floor with a magma blast, then secured the crown with gold stirrups.
10.The villain shocked the guards with lightning sparks, then strapped the crate using a leather harness.
11.The villain burned the lock with emerald flame, then flew off silently with silk reins.
12.The villain shocked the guards with lightning sparks, then steered the beast with a ruby bridle.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 4 math
Math topics
Addition, Multiplication, Rounding, Subtraction, Division
Reading level
grades 7-9
Theme
The Dragon Crown Caper — set in The High-Aerie Dragon Sanctuary
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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