Page 177 - NUMINO Challenge_M2

Answer
Key

Challenge Yourself

358 617 268
37
4 22 4 541

716 853
826 178

5 14 6

347 532

Answers will vary.

If the sum of + is 19, or must be a 2-digit number, so + =9.
Since there is no regrouping in the ones place, =4.

(4-digit number)-(3-digit number)=(2-digit number), so the thousands
and hundreds place of the 4-digit number must be 1and 0, and the
hundreds place of the 3-digit number must be 9.

10
-9

Use the remaining numbers 2, 3, 4, 5, 7, and 8 to complete to expression.

1032 1056
- 947 - 982

85 74

Answers will vary.

40 NUMINO Challenge M2