A farmer planted 4 rows of corn. He put 8 corn seeds in each row. How many seeds did he plant? (Draw an array and answer the question.)
32
100
Karine, Jamie, Tony, Simon and Noelle each ate 7 grapes. How many grapes did they eat in all? (Draw a set model and answer the question.)
5 x 7 = 35 grapes
100
62 x 3 =
186
200
What property does this show? 7 x 9 = 9 x 7
The Commutative Property of Multiplication
200
Name the inverse of 81/9 = 9
9 x 9 = 81
200
Mollie had 24 party favors to give to her 12 friends. If she gave an equal amount to each friend, how many did they each get?
24/12 = 2
200
If a bike can go 2 miles in one hour, how far can it go in 5 hours? (Draw a number line model and answer the question.)
2 x 5 = 10 miles
200
54/9 =
6
300
This property says that when you multiply any factor times 1, your product is the same number.
The Identity Property of Multiplication
300
Write a number fact and inverse using these numbers:
6, 24, 4
4 x 6 = 24
6 x 4 = 24
24/6 = 4
24/4 = 6
300
Sam wrapped 3 presents each day for 5 days. How many presents did he wrap altogether?
3 x 5 = 15
300
Tom is fixing up 7 bicycles. If he has to replace all the tires, how many tires will he need to buy? (Draw a picture and answer the question.)
7 x 2 = 14 tires
300
57 x 5 =
285
400
What property says that you can switch the factors around and it won't affect the product?
The Commutative Propery of Multiplication
400
Write a number sentence and inverse using these numbers:
42, 6, 7
7 x 6 = 42
6 x 7 = 42
42/6 = 7
42/7 = 6
400
Three buses were needed for the field trip. If there were 43 students and teachers in each bus, how many people went on the field trip?
43 x 3 = 129
400
Mel made triangles out of toothpicks. If he made 6 triangles, how many toothpicks did he use?
6 x 3 = 18 toothpicks
400
83 x 4 =
332
500
Complete the number sentence to show the Commutative Property of Multiplication: a x b = ?
b x a
500
Complete the number sentence and give its inverse:
120/10 = ?
10 x 12 = 120
12 x 10 = 120
500
Tina had 5 chores to do. Each chore took the same amount of time. If she finished in 45 minutes, how long did it take to do each chore?
45/5 = 9 minutes
500
Sissy found 50 shells on the beach. She wanted to make 5 necklaces. If she used the same amount of shells for each necklace, how many shells were on each necklace?