🔎 LegosGrade 1Reading: grades 1-2Place valueAdditionSubtractionSkip countingMissing addends
The Big Brick Bandit
Oh no! Someone took the golden lego star from the top of the toy shop tower! We need to find the Brick Bandit who did it. Grab your magnifying glass and help us build a trap!
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 | Builder Tool | Special Gear | Brick Hand | Hairpiece | Big Fear |
|---|---|---|---|---|---|
| Spike | super glue bottle | a glowing helmet | right grip | blue spikes | carpet fuzz |
| Buster | mega builder tool | a grappling hook | right grip | blue spikes | carpet fuzz |
| Mia | laser brick separator | a glowing helmet | right grip | blue spikes | carpet fuzz |
| Dexter | brick copter | a glowing helmet | left grip | a red ponytail | a brick separator |
| Pip | laser stud shooter | a jetpack | left grip | a red ponytail | soapy water |
| Toby | brick copter | rocket boots | right grip | a red ponytail | carpet fuzz |
| Penny | laser brick separator | rocket boots | right grip | a brown wig | carpet fuzz |
| Zack | mega builder tool | an energy shield | left grip | blue spikes | a brick separator |
| Emmet | super glue bottle | rocket boots | left grip | a red ponytail | soapy water |
| Lord Business | laser stud shooter | rocket boots | right grip | blue spikes | carpet fuzz |
| Sammy | super glue bottle | a jetpack | left grip | a brown wig | a brick separator |
| Otis | brick copter | a jetpack | right grip | blue spikes | soapy water |
| Roxy | brick copter | a glowing helmet | right grip | a brown wig | soapy water |
| Max | brick copter | rocket boots | left grip | blue spikes | carpet fuzz |
| Rusty | brick copter | a jetpack | right grip | blue spikes | carpet fuzz |
| Studs | super glue bottle | a grappling hook | right grip | a red ponytail | carpet fuzz |
| Molly | super glue bottle | an energy shield | right grip | a brown wig | carpet fuzz |
| Benny | mega builder tool | a jetpack | left grip | blue spikes | carpet fuzz |
| Gigi | laser stud shooter | rocket boots | right grip | a brown wig | carpet fuzz |
| Unikitty | laser stud shooter | a jetpack | left grip | a brown wig | soapy water |
| Leo | laser stud shooter | a grappling hook | left grip | a red ponytail | carpet fuzz |
Clue 1
Place value
We found a secret code written on stacks of lego plates. Let us count the tens and ones to read it.
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
26
35
24
T
26
35
38
24
23
16
72
24
45
52
72
T
26
14
45
24
65
90
94
65
87
87
48
38
52
90
35
72
72
69
What number has 2 tens and 6 ones?T
What number has 2 tens and 3 ones?F
What number has 4 tens and 8 ones?L
What number has 5 tens and 2 ones?N
What number has 1 ten and 4 ones?U
What number has 4 tens and 5 ones?S
What number has 8 tens and 7 ones?P
What number has 2 tens and 4 ones?E
What number has 3 tens and 5 ones?H
What number has 6 tens and 5 ones?A
What number has 3 tens and 8 ones?I
What number has 9 tens and 4 ones?R
What number has 1 ten and 6 ones?D
What number has 7 tens and 2 ones?O
What number has 6 tens and 9 ones?K
What number has 9 tens and 0 ones?G
0/16 letters found
Clue 2
Addition
The bandit dropped two piles of red lego studs. We must put them together to find the total.
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
4
9
14
14
2
15
5
14
11
20
14
7
9
10
16
7
17
12
15
13
9
T
4
13
12
15
6
1 + 3 =T
3 + 6 =H
10 + 7 =A
1 + 1 =V
3 + 8 =N
2 + 5 =S
14 + 6 =C
8 + 4 =R
3 + 2 =D
7 + 9 =W
11 + 4 =I
2 + 4 =P
3 + 7 =O
6 + 8 =E
9 + 4 =G
0/15 letters found
Clue 3
Subtraction
The bad builder had a bag of bricks but dropped some on the rug. Let us take them away to see how many are left.
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
19
9
14
T
19
9
4
14
2
8
5
13
3
6
12
5
T
19
1
T
19
10
12
6
8
10
15
18
14
T
19
2
13
11
11
20 - 1 =T
11 - 6 =O
13 - 9 =I
16 - 1 =R
12 - 3 =H
19 - 1 =P
19 - 8 =Z
8 - 2 =D
6 - 4 =F
6 - 5 =S
18 - 4 =E
5 - 2 =L
14 - 1 =U
18 - 8 =A
13 - 5 =C
18 - 6 =N
0/16 letters found
Clue 4
Skip counting
We are tracking toy footprints on a baseplate. Let us skip count the plastic studs to see how far they ran.
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
16
90
35
100
14
9
35
A
16
60
30
24
70
60
9
24
10
14
140
A
16
60
35
14
15
30
90
14
8
24
12
20
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20A
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16N
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18E
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45L
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120U
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160W
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110B
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14K
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70S
Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25F
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, ___, 35, 40T
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12H
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15P
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90C
Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30D
0/16 letters found
Clue 5
Missing addends — the last clue
We need to build a defense wall to stop the thief. How many more bricks do we need to make it ten bricks tall?
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
8 + ___ = 14
3 + ___ = 8
10 + ___ = 21
3 + ___ = 13
7 + ___ = 15
2 + ___ = 3
1 + ___ = 5
1 + ___ = 4
9 + ___ = 18
2 + ___ = 4
1 + ___ = 13
Step 2 — cross out the sentence with each answer
1.The villain glued the main gate shut, then zoomed away on rocket boots.
2.The villain took the golden baseplate, then blocked the guards with an energy shield.
3.The villain glued the main gate shut, then blocked the guards with an energy shield.
4.The villain took the golden baseplate, then flew off using a jetpack.
5.The villain stole all the red wheels, then flew off using a jetpack.
6.The villain took the golden baseplate, then zoomed away on rocket boots.
7.The villain glued the main gate shut, then ran into the shadows with a glowing helmet.
8.The villain zapped the blue tower with a laser, then flew off using a jetpack.
9.The villain knocked down the block wall, then swung away on a grappling hook.
10.The villain knocked down the block wall, then zoomed away on rocket boots.
11.The villain zapped the blue tower with a laser, then ran into the shadows with a glowing helmet.
12.The villain zapped the blue tower with a laser, then swung away on a grappling hook.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Big Brick Bandit
Culprit: Spike (super glue bottle · a glowing helmet · right grip · blue spikes · carpet fuzz)
- Clue 1 (Place value): "THE THIEF DOES NOT USE A GRAPPLING HOOK"What number has 2 tens and 6 ones? = 26 (T) · What number has 2 tens and 3 ones? = 23 (F) · What number has 4 tens and 8 ones? = 48 (L) · What number has 5 tens and 2 ones? = 52 (N) · What number has 1 ten and 4 ones? = 14 (U) · What number has 4 tens and 5 ones? = 45 (S) · What number has 8 tens and 7 ones? = 87 (P) · What number has 2 tens and 4 ones? = 24 (E) · What number has 3 tens and 5 ones? = 35 (H) · What number has 6 tens and 5 ones? = 65 (A) · What number has 3 tens and 8 ones? = 38 (I) · What number has 9 tens and 4 ones? = 94 (R) · What number has 1 ten and 6 ones? = 16 (D) · What number has 7 tens and 2 ones? = 72 (O) · What number has 6 tens and 9 ones? = 69 (K) · What number has 9 tens and 0 ones? = 90 (G)
- Clue 2 (Addition): "THE EVIDENCE SHOWS A RIGHT GRIP"1 + 3 = 4 (T) · 3 + 6 = 9 (H) · 10 + 7 = 17 (A) · 1 + 1 = 2 (V) · 3 + 8 = 11 (N) · 2 + 5 = 7 (S) · 14 + 6 = 20 (C) · 8 + 4 = 12 (R) · 3 + 2 = 5 (D) · 7 + 9 = 16 (W) · 11 + 4 = 15 (I) · 2 + 4 = 6 (P) · 3 + 7 = 10 (O) · 6 + 8 = 14 (E) · 9 + 4 = 13 (G)
- Clue 3 (Subtraction): "THE THIEF COULD NOT STAND CARPET FUZZ"20 - 1 = 19 (T) · 11 - 6 = 5 (O) · 13 - 9 = 4 (I) · 16 - 1 = 15 (R) · 12 - 3 = 9 (H) · 19 - 1 = 18 (P) · 19 - 8 = 11 (Z) · 8 - 2 = 6 (D) · 6 - 4 = 2 (F) · 6 - 5 = 1 (S) · 18 - 4 = 14 (E) · 5 - 2 = 3 (L) · 14 - 1 = 13 (U) · 18 - 8 = 10 (A) · 13 - 5 = 8 (C) · 18 - 6 = 12 (N)
- Clue 4 (Skip counting): "A BLUE PLASTIC SPIKE WAS LEFT BEHIND"Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20 = 16 (A) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16 = 12 (N) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18 = 14 (E) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (L) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (U) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (W) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110 = 90 (B) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14 = 10 (K) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70 = 60 (S) · Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25 = 15 (F) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30 = 24 (I) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, ___, 35, 40 = 30 (T) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (H) · Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15 = 9 (P) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90 = 70 (C) · Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30 = 20 (D)
- Clue 5 (Missing addends): surviving statement (box 7) → Spike8 + ___ = 14 = 6 · 3 + ___ = 8 = 5 · 10 + ___ = 21 = 11 · 3 + ___ = 13 = 10 · 7 + ___ = 15 = 8 · 2 + ___ = 3 = 1 · 1 + ___ = 5 = 4 · 1 + ___ = 4 = 3 · 9 + ___ = 18 = 9 · 2 + ___ = 4 = 2 · 1 + ___ = 13 = 12
About this mystery
- Grade level
- Grade 1 math
- Math topics
- Place value, Addition, Subtraction, Skip counting, Missing addends
- Reading level
- grades 1-2
- Theme
- The Big Brick Bandit — set in Brick City Toy Shop
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects