Match the math sentences that count up and back by tens.

47+40=88 57+30=87 46+10=56

56-10=46 87-40=47 87-30=57

Write the matching math sentences.

To match the math sentences that count up and back by tens, we need to find equations where the numbers are increasing or decreasing by 10.

Counting up by tens:

47 + 40 = 88
This equation counts up by adding 40 to 47, which gives us 88.

46 + 10 = 56
This equation counts up by adding 10 to 46, which gives us 56.

Counting back by tens:

56 - 10 = 46
This equation counts back by subtracting 10 from 56, which gives us 46.

87 - 40 = 47
This equation counts back by subtracting 40 from 87, which gives us 47.

87 - 30 = 57
This equation counts back by subtracting 30 from 87, which gives us 57.

Matching math sentences:
47 + 40 = 88
56 + 10 = 66
56 - 10 = 46
87 - 40 = 47
87 - 30 = 57