40.7
7 tens = 70 19 tenths = 1.9
The answer is 20.7 .
Two tenths would be notated as .2 and .7 would be seven tenths.
2 hundred = 2 × 100 = 200 5 ones = 5 × 1 = 5 9 tens = 9 × 10 = 90 3 tenths = 3 × 0.1 = 0.3 → 2 hundreds 5 ones 9 tens 3 tenths = 200 + 5 + 90 + 0.3 = 295.3
4.70
7 tenths as a decimal is 0.7
7 and 2 tenths as a decimal = 7.2
7 tens = 70/1 7 tenths = 7/10
It is 70 + 0.4 + 900 + 8 + 0.02 = 978.42
74749
Expressed as a decimal, 4 7/10 is equal to 4.7.
Tenths