Power of 10
What happens to a number when you multiply it by 10¹?
It moves one place to the left (value increases by 10).
Divide 432 by 12.
36
4.2 + 3.1 = ?
7.3
What is ½ × 8?
4
What is the volume of a box that is 2 units long, 3 units wide, and 4 units tall?
24 cubic units
Multiply 3.6 × 10². What is the result?
360
Use an area model to divide 784 by 7. What is the quotient?
112
6.4 - 2.9 = ?
3.5
What does ⅓ × 9 mean in words?
One third of 9.
If the base area of a box is 10 square units and the height is 5 units, what is the volume?
50 cubic units
How many zeros are in the product of 7 × 10³?
3 zeros (7,000)
Find the quotient: 3,564 ÷ 12.
297
Multiply: 0.6 × 0.4
0.24
Solve: ⅔ × 12
8
How many 1-inch cubes fit into a box that measures 3 in × 3 in × 3 in?
27 cubes
What is the value of 0.42 ÷ 10¹?
0.042
How can you use multiplication to check your answer to a division problem?
Multiply the quotient by the divisor. If the result is the dividend, it’s correct.
Divide: 1.44 ÷ 0.12
12
Use a diagram to explain: ¾ × 8
Divide 8 into 4 parts, take 3 parts: 6.
Show two ways to find the volume of a rectangular prism.
1) Multiply length × width × height; 2) Multiply area of base × height.
Explain what happens to the decimal point when 5.63 is multiplied by 10².
The decimal moves two places to the right, becoming 563.
Divide 1,728 by 24 using partial quotients. What is the answer?
72
Explain how you know where to place the decimal in 3.2 × 0.5.
There are 2 total decimal places in the factors, so the product has 2 decimal places: 1.60.
Find the product: ⅗ × 15
9
A box has a volume of 60 cubic units. If the base is 5 × 3, what is the height?
4 units (because 5 × 3 = 15; 60 ÷ 15 = 4)