Final answer:
Multiplying and dividing decimals by 10 to shift the decimal point.
Step-by-step explanation:
Decimal Patterns
When we multiply a decimal by 10, we move the decimal point one place to the right. So, 0.1 x 10 = 1.0.
When we divide a decimal by 10, we move the decimal point one place to the left. So, 1.0 ÷ 10 = 0.1.
Using this pattern, we can fill in the blanks:
400 + 10 = 410
0.4 x 10 = 4
Learn more about Decimal Patterns