Fact Families
Name 4 facts with these numbers: 3, 7, 21
3 x 7 = 21
7 x 3 = 21
21 ÷ 7 = 3
21 ÷ 3 = 7
What is one third?
What is 99 rounded to the nearest hundred?
100.
A square corner or 90 degrees.
What is a right angle?
5
Many correct possible answers!
For example: What is 50 ÷ 10?
Name 4 facts with these numbers: 6, 4, and 24.
6 x 4 = 24
4 x 6 = 24
24 ÷ 6 = 4
24 ÷ 4 = 6
One portion of a whole, divided into four equal parts.
What is a quarter?
What is a fourth?
What is 121 rounded to the nearest hundred?
100.
An angle that is open less than a right angle, or less than 90 degrees.
What is an acute angle?
10
Many correct possible answers!
For example: What is 80 ÷ 8?
Name 4 facts with the numbers 45, 5 and 9.
9 x 5 = 45
45 d 5 = 9
45 d 9 = 5
What is two thirds?
What is 121 rounded to the nearest ten?
120.
An angle that is open more than a right angle, or 90 degrees.
What is an obtuse angle?
7
Many possible correct answers!
For example: What is 56 ÷ 8?
What is 21 ÷ 3?
Make a fact family with 5, 7 and ___. Name all four facts
5 x 7 = 35
7 x 5 = 35
35 d 5 = 7
35 d 7 = 5
A whole is divided into five equal parts. Three are shaded in.
What is three fifths?
What is 360 rounded to the nearest hundred?
400
360 degrees.
9
Many possible correct answers!
For example: What is 90 ÷ 10?
What is 18 ÷ 2?
Name your own fact family!
Answer varies.
Two wholes are divided into two equal parts each. Three parts are shaded in.
What is three halves?
What is 980 rounded to the nearest hundred?
1,000.
120 degrees.
Hint: What portion of a circle?
A circle is divided into 3 equal parts. How many degrees is the angle of each part?
15
Many possible correct answers!
For example: What is 30 ÷ 2?
What is 45 ÷ 3?