4 x 5 = 20. Which answer below is the inverse operation?
a. 5 ÷ 4 = 20
b. 20 ÷ 10 = 2
c. 20 ÷ 5 = 4
C. 20 ÷ 5 = 4
100
If Maria ate 2 slices of pizza and Robert ate twice that amount, how much pizza did Robert eat?
4 slices, because twice means 2 times as much and 2x2=4
100
The answer to a multiplication problem?
Product
• 7x3=21
• 21 is the product of this expression.
200
9x4=__
36
200
30 ÷ 6 =__
5
200
36 ÷ 6 = 6. What is the inverse operation?
a. 7 x 6 = 42
b. 6 x 7 = 42
c. 6 x 6 = 36
C. 6 x 6 = 36
200
John has visited 5 different cities. Ashley has visited 5 times as many cities as John. How many cities has Ashley visited?
25
Because 5 x 5 = 25
200
The answer to a division problem?
Quotient
• 35÷7=5
• 5 is the quotient of this expression.
300
8 x 9 = ___
72
300
The divisor in the equation 8 ÷ 2 = 4
2
300
If 6 x 4 = 24 then 24 ÷ 4 = __
6
300
4 students shared 16 markers equally. How many markers did each student get?
4
Because 16 ÷ 4 = 4
300
The numbers being multiplied in a multiplication problem?
Factors
• 7x3=21
• 7 and 3 are the factors of this expression.
400
What is the even factor in the equation 6 x 3 = 18
6
400
The quotient in the equation 36 ÷ 9 = 4
4
400
6 x 11 = 66. What is the inverse operation?
a. 6 ÷ 66 = 11
b. 66 ÷ 6 = 11
c. 11 x 6 = 66
b. 66 ÷ 6 = 11
400
If 4 vans and 3 buses were used to take 49 students on a field trip to the zoo and each vehicle held the same number of students, how many students were in each vehicle?
7
Because there are 7 vehicles, 4+3=7
and 49 ÷ 7 = 7
400
The number being divided in a division problem?
Dividend
500
The factor that is a prime number in the equation 4 x 3 = 12
3
500
144 ÷ 2 = __
72
500
15 x 10 = 150. What is the inverse operation?
a. 150 ÷ 10 = 15
b. 150 ÷ 15 = 10
c. both
c. both
500
Yesterday, was field day at our school. 60 3rd grade students were divided into 4 teams. The principle then chose 2 teams to play kick ball. How many students were playing kick ball?