Page 175 - NUMINO Challenge_M2
P. 175
Answer
Key
Creative Thinking
The sum of the given addition sentence is 264. The 4 that is added in the
ones place must be changed to 0 to make the ones place of the sum 0.
Since 16 must be subtracted from the tens place to make the total sum
100, the numbers 2, 6, and 8 in the tens place must be changed to 0.
11 11
22 02
33 33
44 40
66 06
88 08
264 100
However, there is one more 0 left.
Instead of changing 10 Instead of changing 01
02 22
the 4 in the ones 30 the 2 and 6 in the 03
place to 0, change 1 44 tens place to 0, 00
and 3 to 0. change 1, 3, and 4 66
to 0. 08
06
08
100 100
Answers will vary.
To make the greatest result, the greater numbers must be added and the
smallest number must be subtracted.
397 428 165
The result is 97+48-15=130
38 NUMINO Challenge M2
Key
Creative Thinking
The sum of the given addition sentence is 264. The 4 that is added in the
ones place must be changed to 0 to make the ones place of the sum 0.
Since 16 must be subtracted from the tens place to make the total sum
100, the numbers 2, 6, and 8 in the tens place must be changed to 0.
11 11
22 02
33 33
44 40
66 06
88 08
264 100
However, there is one more 0 left.
Instead of changing 10 Instead of changing 01
02 22
the 4 in the ones 30 the 2 and 6 in the 03
place to 0, change 1 44 tens place to 0, 00
and 3 to 0. change 1, 3, and 4 66
to 0. 08
06
08
100 100
Answers will vary.
To make the greatest result, the greater numbers must be added and the
smallest number must be subtracted.
397 428 165
The result is 97+48-15=130
38 NUMINO Challenge M2
