Compute 0.75 + 0.20.

Compute 0.75 + 0.20.

• A. 0.95
• B. 0.55
• C. 0.75
• D. 1.05

Answer: (A)

Lining up decimals and adding by place value is the key idea. When you add 0.75 and 0.20, line up the decimal points so the tenths and hundredths align. Add the tenths: 0.7 + 0.2 = 0.9. Add the hundredths: 0.05 + 0.00 = 0.05. Combine them to get 0.95. Another way is to convert to hundredths: 0.75 is 75 hundredths and 0.20 is 20 hundredths, totaling 95 hundredths, which is 0.95. The other results don’t fit because they would require misaligning the place values or omitting a part of the hundredths.

Lining up decimals and adding by place value is the key idea. When you add 0.75 and 0.20, line up the decimal points so the tenths and hundredths align. Add the tenths: 0.7 + 0.2 = 0.9. Add the hundredths: 0.05 + 0.00 = 0.05. Combine them to get 0.95. Another way is to convert to hundredths: 0.75 is 75 hundredths and 0.20 is 20 hundredths, totaling 95 hundredths, which is 0.95. The other results don’t fit because they would require misaligning the place values or omitting a part of the hundredths.