NC6NS3 Lesson 7 P1 Add & Subtract Decimals

Front

What is the sum of 0.72 and 1.65?

Back

2.37

Front

How do you calculate change from a $20 bill after spending $7.89 and $5.49?

Back

$20 - ($7.89 + $5.49) = $6.62

Front

What is the total distance Isabell ran over three weeks if she ran 42.07 miles, 29.3 miles, and 34.8 miles?

Back

106.17 miles

Front

How do you find the difference in length between two trails measuring 13.09 miles and 9.84 miles?

Back

13.09 - 9.84 = 3.25 miles

Front

What is the total mass of two rocks weighing 41.4 grams and 74.3 grams?

Back

115.7 grams

Front

Define decimal addition.

Back

The process of adding numbers that have decimal points.

Front

Define decimal subtraction.

Back

The process of subtracting one decimal number from another.

Front

What is the importance of aligning decimal points when adding or subtracting?

Back

Aligning decimal points ensures that each digit is in the correct place value.

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten.

Front

How do you round a decimal to the nearest hundredth?

Back

Look at the digit in the thousandths place; if it's 5 or more, round up.