Decimal Basics

When subtracting numbers with decimals you align the correct place values then add. In other words, you subtract tenths from tenths and tens from tens. If you are taking away more then you carry or borrow one (which equals 10) from the number to the left and then subtract.

• True

• False

When dividing with decimals it is important to multiply both numbers by a power of ten equal to the number with the most decimal places, then divide.

• True

• False

Two girls went to shopping, Maurena bought 1 shirt for 28.00, Kari bought 1 pair of shorts for 13.28. What is the sum?

• 41.28

• 16.25

• 45.27

• 36.12

Jenna bought a bag of gummi bears that cost $2.74. She gave the clerk $10. How much money will she get back in change? 

• 12.74

• 4.36

• 7.26

• 7.62

Round 56.872 to the nearest tenth.

• 56.90

• 57

• 56.9

• 56.972

Compare: 8.09 ____8.9

• greater than

• less than

• equal to

What is the word form of the number 0.9?

• nine tens

• nine tenths

• zero point nine

• nine oneths

Which number has the least value?

• 15.2

• 12.5

• 5.12

• 21.5

Which number has the greatest value?

• 2.54

• 54.2

• 42.5

• 4.52

Compare these numbers:
0.105     0.150

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