Multiplying by 10s
400 x 7
2,800
(4 x 5) + 18
38
42 ÷ __ = 7
6
Round 84 to the nearest ten
80
If a baseball weighs 32 grams, and a basketball weighs 65 grams, how much heavier is the basketball than the baseball?
33 grams
What is an expression equal to 6 x 5 x 30?
6 x 150
5 x 180
30 x 30
32 - (5 x 2)
22
8 x __ = 32
4
Round 347 to the nearest hundred
300
The total weight of an airplane and a boat is 568 kilograms. If the airplane weighs 393 kilograms, how much does the boat weigh?
175 kilograms
7,000 x 30
210,000
What is an expression equal to 5 x 9?
9 x 5
(10 x 5) - (1 x 5)
(5 x 4) + (5 x 5)
81 ÷ __ = 9
9
Round 668 to the nearest ten
Ms. Seymour earns $10 each time she does laundry, and $5 each time she takes out the trash. If she does laundry 6 times per month and takes out the trash 6 times per month, how much money does she make in total in a month?
$90
(10 x 6) + (5 x 6) = 60 + 30 = $90
What is an expression equal to 4 x 5 x 20?
4 x 100
5 x 80
20 x 20
What is an expression equal to 9 x 7?
7 x 9
(10 x 7) - (1 x 7)
(5 x 6) + (11 x 3)
8
10 and 20
Ms. Seymour hopes to earn $90 each month. If she wants to buy a TV that costs $540, how many months will it take her to save up enough money?
6 months
What is an expression equal to 400 x 5 x 600
2,000 x 600
400 x 3,000
240,000 x 5
40 - (5 x 3)
25
132 ÷ __ = 12
11
What is the halfway point between 20 and 30 grams?
25 grams
If a rectangle has 4 rows with 9 squares in each row, what is the area of the rectangle?
4 x 9 = 36 square units