5.NBT.7 Adding & Subtracting Decimals

Front

What is the sum of 45.76 and 32.8?

Back

78.56

Front

Estimate the difference: 19.7 - 6.9.

Back

13

Front

If the total weight of two packages and a box is 116.37 pounds, and one package weighs 47.85 pounds and the other weighs 46.31 pounds, what is the weight of the box?

Back

22.21

Front

What is 30 - 17.86?

Back

12.14

Front

Mary bought an orange for $0.89 and a soda for $1.95. What is the best estimate for her total spending?

Back

$3.00

Front

What is the definition of a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point.

Front

How do you add decimals?

Back

Align the decimal points and add as you would whole numbers, then place the decimal point in the sum.

Front

What is the process for estimating the sum of decimals?

Back

Round each decimal to the nearest whole number and then add.

Front

What is the process for estimating the difference of decimals?

Back

Round each decimal to the nearest whole number and then subtract.

Front

What does it mean to subtract decimals?

Back

Subtracting decimals involves finding the difference between two decimal numbers, aligning the decimal points.