Decimal Multiplication and Division

Multiply 9.2 X 17; Use estimation to check that the answer is reasonable.

• 134.6
• 156.4
• 201.4

Eight whales have been born at an aquarium. Their total mass is 1300 kilograms. Find the mean mass of the whales.

• 162.5 kg
• 325 kg
• 185.7 kg
• 144.5 kg

.9g = ? mg

• 90
• 9000
• 900
• 9

Choose the symbol which best completes the statement. 215 kg _?_ 2150 g

• <
• >
• =

A can of soup contains 710 milligrams of sodium. How many grams of sodium are in the can?

• 71 grams
• 7.1 grams
• .71 grams
• .071 grams

Multiply 2.692 X 100. Use estimation to check that the answer is reasonable.

• 2692
• 269.2
• 26.92
• .02692

Use mental math to find the quotient. 1.5/100

• .0015
• .015
• .15
• 150

13.77 X 1000 = 13,770

• True
• False

3200 L = ? kL

• 32
• .32
• 3.2
• 320

Tell whether the commutative or associative property of multiplication allows you to rewrite the problem as shown. 
2 X 6.82 X 25=6.82 X 2 X 25

• Commutative Property
• Associative Property