Math Mysteries
Cal summer camp, football, bGrade 3Reading: grades 3-4Place valueMultiplicationRoundingAdditionDivision

The Camp Golden Bear Trophy Mystery

The big camp championship game is tonight, but someone has swiped the golden Bear Trophy! The fields are locked down, and the coach needs your help to find out which camper did it before the final whistle blows.

Suspects

Possible suspects

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

21 of 21 still in play
NameFavorite SportCamp GearWatch WristHair ColorCamp Weakness
MilesCamp CraftsBear BackpackLeft Wrist WatchBlonde HairWater Balloons
CaitlinCamp CraftsGolden WhistleRight Wrist WatchBlonde HairWater Balloons
ShaqTrack StarSpeed GogglesLeft Wrist WatchBrown HairMelted Smores
AdaTrack StarGolden WhistleRight Wrist WatchBlonde HairWater Balloons
LeBronTrack StarBlue HeadbandRight Wrist WatchBlonde HairWater Balloons
LewisCamp CraftsGolden WhistleLeft Wrist WatchBrown HairMelted Smores
Coach CalCamp CraftsLucky SocksRight Wrist WatchBlonde HairWater Balloons
PatrickKart RacingLucky SocksLeft Wrist WatchBlonde HairWater Balloons
StephFootballGolden WhistleLeft Wrist WatchBlonde HairCold Lemonade
DanicaCamp CraftsLucky SocksLeft Wrist WatchBlack HairWater Balloons
GiannisKart RacingBlue HeadbandRight Wrist WatchBrown HairCold Lemonade
LandoCamp CraftsSpeed GogglesRight Wrist WatchBrown HairWater Balloons
TravisFootballSpeed GogglesLeft Wrist WatchBlack HairCold Lemonade
CocoFootballGolden WhistleRight Wrist WatchBrown HairCold Lemonade
CassiusTrack StarLucky SocksLeft Wrist WatchBrown HairWater Balloons
TeddyCamp CraftsLucky SocksRight Wrist WatchBlonde HairCold Lemonade
SimoneBasketballSpeed GogglesRight Wrist WatchBlack HairWater Balloons
AddieKart RacingBlue HeadbandRight Wrist WatchBlonde HairWater Balloons
MessiCamp CraftsGolden WhistleRight Wrist WatchBlonde HairMelted Smores
BubbaKart RacingBlue HeadbandLeft Wrist WatchBlonde HairWater Balloons
TomBasketballBlue HeadbandRight Wrist WatchBlack HairWater Balloons
Clue 1

Place value (tens & ones)

Teddy looked at the camp points board. The digits were scrambled, but knowing the place value of the tens digit unlocked the locker.

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
72
98
31
73
58
42
99
83
52
T
72
31
58
29
33
31
52
99
33
T
72
19
31
42
58
93
97
86
83
26
52
33
86
83
52
What number has 7 tens and 2 ones?T
What number has 1 ten and 9 ones?W
What number has 5 tens and 8 ones?R
What number has 8 tens and 6 ones?C
What number has 9 tens and 9 ones?N
What number has 3 tens and 1 one?E
What number has 5 tens and 2 ones?S
What number has 7 tens and 3 ones?P
What number has 4 tens and 2 ones?A
What number has 2 tens and 9 ones?D
What number has 8 tens and 3 ones?K
What number has 9 tens and 7 ones?U
What number has 9 tens and 8 ones?H
What number has 2 tens and 6 ones?Y
What number has 3 tens and 3 ones?O
What number has 9 tens and 3 ones?L
0/16 letters found
Clue 2

Multiplication facts (1-12)

Addie counted the rows of basketballs. There were several racks with a set number on each, and multiplying them gave the code to the equipment shed.

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
8
50
49
42
144
21
42
50
9
21
49
9
21
54
40
77
121
50
T
8
110
40
77
42
T
8
110
54
T
8
84
50
2 × 4 =T
10 × 11 =W
6 × 7 =S
11 × 7 =I
9 × 6 =A
1 × 9 =O
8 × 5 =R
11 × 11 =G
12 × 12 =U
7 × 7 =E
5 × 10 =H
12 × 7 =C
7 × 3 =N
0/13 letters found
Clue 3

Rounding

Miles checked the speed radar on the racing track. It only displays speeds rounded to the nearest ten, which helped him narrow down the clue.

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
2000
70
500
T
2000
300
40
700
70
200
T
2000
70
90
500
6000
300
9000
20
6000
300
40
900
4000
9000
T
2000
500
300
7000
9000
400
400
40
40
20
8000
Round 1,862 to the nearest thousandT
Round 4,171 to the nearest thousandW
Round 91 to the nearest tenI
Round 270 to the nearest hundredR
Round 196 to the nearest hundredY
Round 389 to the nearest hundredL
Round 67 to the nearest tenH
Round 709 to the nearest hundredP
Round 5,950 to the nearest thousandF
Round 7,393 to the nearest thousandB
Round 8,489 to the nearest thousandS
Round 39 to the nearest tenO
Round 9,309 to the nearest thousandA
Round 24 to the nearest tenN
Round 906 to the nearest hundredM
Round 512 to the nearest hundredE
0/16 letters found
Clue 4

Addition

Ada gathered all the lost scrimmage vests. Adding the red vests to the blue vests revealed the total number written on the hidden note.

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

A
799
875
532
880
421
376
937
875
929
963
205
430
469
376
A
799
880
532
694
A
799
394
963
205
937
376
469
875
469
205
618
376
287 + 512 =A
614 + 323 =T
416 + 202 =C
544 + 331 =B
259 + 171 =D
179 + 290 =E
421 + 273 =W
193 + 183 =H
269 + 125 =S
226 + 195 =G
426 + 503 =L
91 + 114 =N
529 + 351 =I
258 + 274 =R
343 + 620 =O
0/15 letters found
Clue 5

Division facts (1-12) — the last clue

Cassius split the box of energy bars equally among the camp cabins. Dividing them up left a remainder that matched the final lock combination.

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
120 ÷ 10 = ?
72 ÷ 9 = ?
8 ÷ 4 = ?
72 ÷ 8 = ?
63 ÷ 9 = ?
40 ÷ 4 = ?
24 ÷ 8 = ?
7 ÷ 7 = ?
35 ÷ 7 = ?
48 ÷ 8 = ?
48 ÷ 12 = ?
Step 2 — cross out the sentence with each answer
1.The villain dribbled down the court, then zipped up a bear backpack.
2.The villain zoomed around the track, then adjusted their blue headband.
3.The villain dribbled down the court, then put on shiny speed goggles.
4.The villain sprinted across the field, then put on shiny speed goggles.
5.The villain painted a camp banner, then pulled up some lucky socks.
6.The villain threw a long spiral pass, then adjusted their blue headband.
7.The villain dribbled down the court, then adjusted their blue headband.
8.The villain sprinted across the field, then adjusted their blue headband.
9.The villain threw a long spiral pass, then zipped up a bear backpack.
10.The villain dribbled down the court, then pulled up some lucky socks.
11.The villain sprinted across the field, then blew a loud golden whistle.
12.The villain painted a camp banner, then blew a loud golden whistle.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 3 math
Math topics
Place value, Multiplication, Rounding, Addition, Division
Reading level
grades 3-4
Theme
The Camp Golden Bear Trophy Mystery — set in Camp Golden Bear sports fields and tracks
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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