Problem

Perform the indicated operation. See Examples 4 through 7.ExampleExample 4 Add.a. 5.87 + 2...

Perform the indicated operation. See Examples 4 through 7.

Example

Example 4 Add.
a. 5.87 + 23.279 + 0.003
b. 7 + 0.23 + 0.6
Solution:
a.
b.
Example 5 Subtract.
a. 32.15 − 11.237
b. 70 - 0.48
Solution:
a.
b.
Now let's study the following product of decimals. Notice the pattern in the decimal points.
In general, to multiply decimals, follow the steps below.
Example 6 Multiply.
a. 0.072 × 3.5
b. 0.17 × 0.02
Solution:
a.
b.
Example 7 Divide.
a. 9.46 ÷ 0.04
b. 31.5 ÷ 0.007
Solution:
a.
b.