Fact Families
8 x 7 = 56
56/7 = 8
7 x 8 = 56
What is 56/8 = 7?
Kristin buys 8 balloons. Each balloon costs $1.50. She pays with 3 five-dollar bills. Which might you do first to find out how much change she would get?
a. Subtract 8 from 15
b. Add 8 and $1.50
c. Add 15 and $1.50
d. Multiply 8 by $1.50
What is d. Multiply 8 by $1.50?
Which number sentence is true?
a. 16 / 8 > 16 / 4
b. 24 / 8 > 3 x 2
c. 40 / 5 = 4 x 2
d. 42 / 6 > 48 / 6
What is c. 40 / 5 = 4 x 2?
Which equation has a product between 40 and 50?
a. 3 x 8 = n
b. 8 x 7 = n
c. 4 x 9 = n
d. 7 x 7 = n
What is d. 7 x 7 = n?
In the orchard, there are 81 trees in 9 rows. How many trees are in one row?
Which group of numbers cannot make a fact family?
a. 3, 4, 12
b. 6, 7, 42
c. 5, 6, 30
d. 4, 5, 10
What is d. 4, 5, 10?
It will take Martin 23 hours to build a doghouse. He has already worked 5 hours. If he works 2 hours each day, how many days will it take to finish the doghouse?
The singing part of the talent show will last exactly 18 minutes. There are 6 singers on the set list. Each singer has an equal amount of time. How many minutes does each singer have?
What is 3 minutes?
There are 5 ticket booths at the train station. At each booth, there are 9 tickets sellers. How many ticket sellers are there in all?
What is 45 ticket sellers?
Bruno is thinking of a number between 35 and 51. It is even. The sum of the digits is greater than 10 and less than 12. There is no digit 4. What is the number?
What is 38?
There are 24 dance students in a recital. For part of their dance, the dancers form equal groups. Which is not a possibility?
a. 4 groups, 6 dancers in each group.
b. 2 groups, 12 dancers in each group.
c. 5 groups, 5 dancers in each group.
d. 3 groups, 8 dancers in each group.
What is c. 5 groups, 5 dancers in each group?
Harry solved one of the problems below. The solution was 7. Which problem did he solve?
a. (3 x 4) - 2 = ___
b. (2 x 3) + 1 = ___
c. (15 / 3) - 2 = ___
d. (21 / 7) + 3 = ___
What is b. (2 x 3) + 1 = ___?
Tickets for the talent show cost $6.00 each. A family spent $42.00. How many tickets did they buy? Write an equation to match.
What is 7 tickets?
42 / 6 = ___
6 x ___ = 42
A rabbit jumps twice as far as a frog. A frog jumps twice as far as a cricket. The cricket jumps 4 inches. How far does the rabbit jump?
2 x 4 = 8
2 x 8 = 16
Find the value of n when n = 6 x 7. Then add 5. What is the answer?
What is 47?
Three rows of 6 dancers move around the stage. Then they form two equal rows. How many dancers are in each row?
What is 3 dancers in each row?
Chen bought 9 muffins and Chris bought 6 muffins. They put the muffins into 3 bags. Each bag had the same number of muffins. How many muffins were in each bag?
What is 5 muffins in each bag?
Jane is trying to solve 54 / 9. Which strategy cannot be used?
a. Draw 54 squares. Circle groups of 9. Count the groups.
b. Begin with 54. Continue until you reach 0. Count how many times that 9 is subtracted?
c. Use the relationships between multiplication and division. Find the missing number in 9 x n = 54.
d. Draw 54 squares. Cross out all but 9 squares. Count the squares that are not crossed out.
What is d. Draw 54 squares. Cross out all but 9 squares. Count the squares that are not crossed out?
One train has 9 cars. Another train has 6 cars. Each car has 2 doors. How many more doors are there on the first train?
A movie ended at 5:15pm. It lasted 2 hours and 30 minutes. At what time did the movie start?
What is 2:45pm?
There are 8 rows of hearts. Each row has 4 hearts. What fact or equation tells the number of hearts there are in all?
8 x 4 = 32 OR 4 x 8 = 32
Yesterday, 3 friends collected 17 bottle caps altogether. Today they collected 7 more bottle caps. If they share the caps equally, how many caps will each friend get?
What is 8 bottle caps?
Which fact help you find 36 / 6?
6 x 6 = 36
There are 4 rows of dots. Each row has 5 dots. You erase one dot in each row. How can you find the number of dots that are left?
a. Find 4 x 5. Then add 5
b. Find 4 x 5. Then subtract 4
c. Add 4 + 5 + 4
d. Find 4 x 5. Then subtract 5
What is b. Find 4 x 5. Then subtract 4?
Four students are in line. Drew is second in line. Jeff is in front of Drew. Beth is behind Jane. In what order are the students?
What is Jeff, Drew, Jane, then Beth?