Question

Вычисли и проверь: 42-8, 90-54, 64+6

Answer 1

42-8=34

90-54=36

64+6=70

To calculate these expressions, we simply perform the indicated operation between the numbers given.

In the first expression, 42-8, we subtract 8 from 42 to get 34.

In the second expression, 90-54, we subtract 54 from 90 to get 36.

In the third expression, 64+6, we add 6 to 64 to get 70.

To check the accuracy of these calculations, we can perform the reverse operation and see if we get the original numbers.

So, in the first expression, 34+8=42, which matches the original number 42.

In the second expression, 36+54=90, which matches the original number 90.

In the third expression, 70-6=64, which matches the original number 64.

Therefore, the calculations are correct.