Practice

What is 12 times 15? If I was to use "doubling and halving" what would be my new problem?

• 12 x 10 plus 12 x 5

• 6 x 30

• AlGOrithm!!!

• 12 x 12 plus 3 x 12

Round 4.455 to the nearest hundredth.

• 4.45

• 4.46

• 4.5

• 4.6

What is the perimeter of a 4 inch square?

• 16 square inches

• 16 inches

• 8 inches

• 32 inches

1.677 ____ 1.67

• <

• >

• =

When multiplying any number by 100, I simply ________.

• move the decimal point in the number two zeros to the left.

• move the decimal point in the number two zeros to the right.

• Just add a zero.

What is the area of this rectangle?

• 320 square meters

• 640 square meters

• 640 meters

• 320 meters

When dividing a number by 10, I simply________.

• Take away one zero.

• Move the decimal point in the number one place to the left.

• Move the decimal point in the number one place to the right.

• Move the decimal point in the number two places to the left.

How many grams are in 5 kilograms?

• 500

• 50

• 5,000

• 5

How many litres are in 500 milliliters?

• 5

• 0.5

• 0.005

• 0.05

Which common demonimators could be used when adding 2/7 + 1/14?

• 7

• 14

• 21

• 28