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Riddle puzzle: Subtraction with regrouping

Solve each question. Find your answer in the decoder and write its letter in the box. The letters answer the riddle.

Name

Date

What did the triangle say to the circle?

  1. 1.400 − 162 = ?
  2. 2.310 − 163 = ?
  3. 3.431 − 194 = ?
  4. 4.There were 72 apples. Then 18 were used. How many are left?
  5. 5.528 − 138 = ?
  6. 6.300 − 179 = ?
  7. 7.803 − 108 = ?
  8. 8.30 − 25 = ?
  9. 9.340 − 135 = ?
  10. 10.30 − 24 = ?
  11. 11.90 − 30 = ?
  12. 12.Yuki had 93 beads and gave away 66. How many beads are left?
  13. 13.6000 − 5694 = ?
  14. 14.607 − 236 = ?

Decoder

390E

121P

10X

306S

238Y

695O

60L

237U

54R

27E

6T

814Q

205N

147O

371S

5I

218J

355Z

The answer to the riddle

1
2
3
4
5
6
7
8
9
10
11
12
13
14

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Answer key: Subtraction with regrouping riddle

What did the triangle say to the circle? You're pointless!

  1. 1. 238 = Y
  2. 2. 147 = O
  3. 3. 237 = U
  4. 4. 54 = R
  5. 5. 390 = E
  6. 6. 121 = P
  7. 7. 695 = O
  8. 8. 5 = I
  9. 9. 205 = N
  10. 10. 6 = T
  11. 11. 60 = L
  12. 12. 27 = E
  13. 13. 306 = S
  14. 14. 371 = S

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