Compare and Multiply
There are 4 times as many apples as oranges. There are 6 oranges. How many apples?
What are 24 apples?
6 × 10 = ?
What is 60?
Round 47 to the nearest ten.
What is 50?
Break apart 24 using place value.
What is 20 + 4?
What is 4 × 3?
What is 12?
Which equation matches this statement?
32 is 4 times as many as 8.
What is 4 × 8 = 32?
8 × 100 = ?
What is 800?
Estimate 39 × 4 by rounding 39.
What is 40 × 4 = 160?
Solve using the Distributive Property:
23 × 4
What is (20 + 3) × 4;
80 + 12 = 92?
Solve:
27 × 4
What is 108?
Mia has 8 stickers. Jake has 5 more stickers than Mia. Is this an additive or multiplicative comparison?
What is Additive comparison
7 × 1,000 = ?
What is 7,000?
Estimate 62 × 5.
What is 60 × 5 = 300?
Use expanded form to solve:
123 × 2
What is (100 + 20 + 3) × 2
200 + 40 + 6 = 246?
When solving 146 × 5, what is 6 × 5?
What is 30?
A blue team has 3 times as many points as a red team. The red team has 12 points. How many points does the blue team have?
What is 36 points?
40 × 6 = ?
What is 240?
Is 29 × 6 = 174 reasonable?
Yes.
29 rounds to 30, and 30 × 6 = 180.
Use partial products to solve:
142 × 3
100 × 3 = 300
40 × 3 = 120
2 × 3 = 6
426
Solve:
146 × 5
What is 730?
A large box has 6 times as many crayons as a small box. The small box has 9 crayons. How many more crayons are in the large box?
What is 45 more crayons?
What is 3,000 × 8?
What is 24,000?
A student says 48 × 7 = 246. Is the answer reasonable? Explain.
No.
48 rounds to 50.
50 × 7 = 350, so 246 is not reasonable.
Solve 326 × 4 using expanded form or the Distributive Property.
What is 300 + 20 + 6) × 4
1,200 + 80 + 24 = 1,304?
Solve:
278 × 6
What is 1,668?