Question

1. solve.

a. 10 tens − 1 ten 1 tenth
b. 3 − 22 tenths
c. 37 tenths − 1 one 2 tenths
d. 8 ones 9 hundredths − 3.4
e. 5.622 − 3 hundredths
f. 2 ones 4 tenths − 0.59

Explanation:

Part a

Step1: Convert to decimals

10 tens = \(10\times10 = 100\), 1 ten 1 tenth = \(1\times10 + 1\times0.1=10.1\)

Step2: Subtract

\(100 - 10.1 = 89.9\)

Part b

Step1: Convert 22 tenths

22 tenths = \(\frac{22}{10}=2.2\)

Step2: Subtract

\(3 - 2.2 = 0.8\)

Part c

Step1: Convert to decimals

37 tenths = \(\frac{37}{10}=3.7\), 1 one 2 tenths = \(1 + 2\times0.1 = 1.2\)

Step2: Subtract

\(3.7 - 1.2 = 2.5\)

Part d

Answer:

89.9