Multiplication & Division
Answer to 4 × 6 using repeated addition.
4+4+4+4+4+4=24
A number has 3 hundreds, 6 tens, 2 ones. What number is it?
362
Which property explains why the equation below is true?
7 × 1 = 7
Explain in words.
This is the Identity Property of Multiplication.
Multiplying any number by 1 keeps the number the same.
So 7 × 1 = 7.
Round 246 to the nearest ten.
250
You have 5 groups of 7. Write the matching division equation.
35 ÷ 7 = 5 or 35 ÷ 5 = 7
Round 368 to the nearest ten.
370
Draw/describe an array for 3 × 5.
3 rows of 5
Round 684 to the nearest hundred.
700
A farmer has 36 apples. He packs them into equal groups of 4. How many groups?
9 groups
Solve: 500 – 287
213
I read 6 pages a day for 8 days. Write a number sentence with the answer
Equation: 6 × 8 = 48
Answer: 48 pages
A clock shows the minute hand on the 6 and the hour hand between 3 and 4.
What time is it?
3:30
Explain why 8 × 3 = 3 × 8 and name the property.
Because you can switch the order of factors and still get the same product.
This is the Commutative Property.
Which is greater: 4 tens + 8 ones OR 3 hundreds?
4 tens + 8 ones = 48
3 hundreds = 300
300 is greater.
Use distributive property: 9 × 6
(9 × 3) + (9 × 3) = 27 + 27 = 54
OR
Break apart 9:
(6 × 5) + (6 × 4) = 30 + 24 = 54
Malik started reading at 2:15 PM and stopped at 2:47 PM.
How many minutes did he read?
2:47 – 2:15 = 32 minutes
27 students sit in rows of 9. Write a multiplication AND division sentence.
9 × 3 = 27
27 ÷ 9 = 3 (or 27 ÷ 3 = 9)
I baked 1,203 cookies. I sold 476 on Monday and 318 on Wednesday. How many cookies are left?
1,203 cookies. Sold 476 and 318. How many left?
Use the Distributive Property to solve:
8 × 14
Break apart the 14 in two different ways and show BOTH methods.
Method 1 (break apart 14 → 10 + 4):
8 × (10 + 4) = (8 × 10) + (8 × 4)
= 80 + 32
= 112
Method 2 (break apart 14 → 7 + 7):
8 × (7 + 7) = (8 × 7) + (8 × 7)
= 56 + 56
= 112
A movie starts at 4:38 PM and ends at 6:12 PM.
How long is the movie? Show how you know.
From 4:38 → 5:00 = 22 minutes
5:00 → 6:00 = 60 minutes
6:00 → 6:12 = 12 minutes
Total = 22 + 60 + 12 = 94 minutes