Adding and Subtracting Decimals

Open Ended

Why is it important to learn how to add and subtract decimals up to hundredths in everyday life?

Multiple Choice

Which of the following is a correct example of adding decimals up to hundredths without regrouping?

• 0.45 + 0.32 = 0.77

• 0.56 + 0.49 = 1.05

• 0.67 + 0.38 = 1.15

• 0.23 + 0.78 = 1.11

Open Ended

Explain why it is important to line up the decimal points when adding decimals.

Multiple Choice

What is the sum of 2.18 and 1.31 when you add decimals to the hundredths place?

• 3.49

• 3.39

• 3.41

• 3.51

Multiple Choice

When adding 3.46 and 2.72, what is the sum after regrouping?

• 6.18

• 5.18

• 6.08

• 6.28

Multiple Select

Which of the following steps are necessary when adding decimals to the hundredths place?

• Line up the decimal points

• Add from right to left

• Regroup if needed

• Ignore place value

Multiple Choice

What is the sum of 51.37 and 24.50?

• 26.87

• 7,587.00

• 75.87

Multiple Choice

What is the result of 23.15 - 10.42 when subtracting decimals to the hundredths place?

• 12.73

• 13.73

• 12.03

• 13.03

Multiple Choice

• 11.01

• 8.99

Multiple Choice

Evaluate
13.76 - 6.5 = ?

• 13.11
• 10.5
• 8.1
• 7.26

Multiple Choice

Subtract. 789.03 - 77.1

• 711.02

• 711.93

• 781.32

• 18.03

Multiple Choice

Which steps are important to remember when adding or subtracting decimals to the hundredths place?

• Line up digits by place value

• Add or subtract from left to right

• Ignore the decimal symbol

• Start with the largest place value

Multiple Choice

Lead melts at 327.46 degrees Celcius. What is the value of the 6 in 327.46?

• 6 hundredths

• 6 tenths

• 6 hundreds

• 6 thousandths

Multiple Choice

A recipe calls for $$1.25$$ cups of sugar. If you accidentally add $$1.75$$ cups, how much more sugar did you add than the recipe called for?

• $$0.5$$ cups

• $$0.4$$ cups

• $$0.6$$ cups

• $$0.3$$ cups

Multiple Choice

Xavier bought a toy for $8.94 and gave the cashier $2.58. How much more does he need to pay?

• $$6.36$$

• $$6.46$$

• $$6.56$$

• $$6.66$$

Open Ended

What is one strategy you learned for adding or subtracting decimals up to hundredths?