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100

Baby Pedro is stacking blocks. He made seven stacks with seven blocks in each stack. Write a multiplication number sentence to show how many blocks Pedro used.

7 x 7 = 49 blocks

100
Mr. Jones wants to plant 24 flowers in equal rows in his garden. He made 4 rows with 6 plants in each row. What number expression does this array represent?
6 x 4
100
If you multiply 17 times 100, what digit will be in the ones place?
17 x 100 = 1,700, so a zero will be in the ones place.
100
Suzy bought 2 dozen eggs. How many eggs did she buy?
A dozen is twelve. 2 x 12 = 24 eggs
100

Estimate the Product.

31 x 8 =

30 x 10 = 300

200
A restaurant used 24 dozen eggs. Write a multiplication number sentence that could be used to find the total number of eggs used.
A dozen is twelve. 24 x 12 = 288 eggs
200
At the start of a checker game, there are 16 pieces on the board. When Franklin's checkers tournament started, there were twelve games going at once. How many checkers were on the boards at the start of the tournament?
16 x 12 = 192 checkers
200
If you multiply 25 x 100, what digit will be in the tens place?
25 x 100 = 2,500, so a zero will be in the tens place.
200
Jim's tile counter is arranged in 5 rows of tile. There are 8 tiles on each row. How many tiles are used in all?
5 x 8 = 40 tiles
200
Estimate the product of 18 and 24.
20 x 20 = 400
300
A class had 21 students. Each student bought a warrior shirt for $13. Write a multiplication number sentence that could be used to show the amout the class spent on shirts.
21 x 13 = ?
300
Mrs. Jones bought 6 bags of Tootsie Rolls. Each bag contains 125 pieces of candy. How many pieces of candy did she buy?
6 x 125 = 750 pieces of candy
300
William Robert counts 100 stars each night. If he continues this, how many stars might he count after 47 nights?
100 x 47 = 4,700 stars
300
Sally ordered a set of 12 toy cars for each of her 7 nephews. How many cars did she order all together?
12 x 7 = 84 toy cars
300

Estimate the product.

172 x 82 =

200 x 80 = 1,600

400
It was a dark and stormy night. Twenty-three trick-or-treaters went up the spooky stairs to the dark, old house with hopes of full-size chocolate candy bars. They each came back with two peppermints. Write a number sentence to show how many peppermints the old hag in the spooky house gave out.
23 x 2 = 46 peppermints
400
Tom collected coins. He placed 20 coins in his album each day for two weeks. How many coins did Tom place in his album?
1 week = 7 days, so 2 weeks = 14 days 20 x 14 = 280 coins
400
Fritz did 100 push-ups each night. If he continued this for 100 nights, how many push-ups would he do?
100 x 100 = 10,000 push-ups
400
Kenny takes care of his neighbors cats while they are away on vacation. When he takes care of 2 cats, he earns $14. When he takes care of 4 cats, he earns $28. If he takes care of 7 cats, he will earn $49. Make a chart to help you find the relationship between the number of cats and the money earned.
He earns $7 for each cat he watches.
400

Estimate the Product.

461 x 49 =

500 x 50 = 25,000
500
There were 68 goats in a field. Each goat ate 12 pounds of grass. Write a number sentence to show how much grass all the goats ate.
68 x 12 = 816 pounds of grass
500
There are 18 students in Mary's class. Each student brought eight cans for the food drive. What is a good estimate of the number of cans Mary's class collected?
20 x 8 = 160 cans of food
500
There are 78 passengers on an airplane. Each passenger is served 10 pretzels and a small beverage. How many pretzels were given to the passengers?
78 x 10 = 780 pretzels
500
George bought 12 dozen doughnuts. How many doughnuts did he buy?
12 x 12 = 144 doughnuts
500

Estimate the Product.

881 x 490 =

900 x 500 = 450,000