Multiplication & Properties
What is 7 × 8?
56
Write 5 × 5 × 5 using an exponent.
5³
34 × 10
340
0.5 × 6
3
Estimate:
49 × 21
About 1,000
(50 × 20)
Name the property shown:
6 × 9 = 9 × 6
Commutative Property
Evaluate:
4²
16
56 × 100
5,600
2.4 × 3
7.2
Which estimate is most reasonable for 198 × 31?
A. 600
B. 6,000
C. 60,000
B. 6,000
Name the property shown:
(4 × 5) × 2 = 4 × (5 × 2)
Associative Property
Evaluate:
3⁴
81
7.2 × 10
72
4.25 × 6
25.5
A student says 3.8 × 5 = 190. What mistake did the student probably make?
The decimal point was placed incorrectly. The correct answer is 19.
Use the Distributive Property to rewrite:
8 × 23
8 × (20 + 3)
= 160 + 24
= 184
Write 10,000 as a power of 10.
10⁴
4.35 × 100
435
12.6 × 14
176.4
A store has 24 boxes. Each box contains 36 pencils. How many pencils are there altogether?
864 pencils
Find the product:
326 × 24
7,824
Which is greater: 2⁵ or 5²?
2⁵, because 32 > 25
0.068 × 1,000
68
A notebook costs $2.75. What is the cost of 8 notebooks?
$22.00
A school buys 18 packs of paper. Each pack costs $12.75. How much does the school spend?
$229.50