Basic Fact Families
What is the basic fact family of 130, 60, and 70?
6+7=13
7+6=13
13-6=7
13-7=6
What are the four fact families of 1, 2, and 3?
1+2=3
2+1=3
3-2=1
3-1=2
58-17=
50 8
- 10 7
__________
40 1= 41
21-7=
14
What is the difference between the number of voters who like Life cereal and Cheerios?
4
What is a basic fact family of 70, 80, and 150
7+8=15
8+7=15
15-7=8
15-8=7
What are the four fact families of 9, 8, 17?
9+8=17
8+9=17
17-8=9
17-9=8
72-37
70 2
- 30 7
__________
30 5= 35
35-10=
25
What cereal did most people prefer?
Life
What is a basic fact family for 200, 150, 350?
10+15=35
15+10=35
35-20=15
35-10=25
What are the four fact families of 30, 80, 50?
30+50=80
50+30=80
80-50=30
80-30=50
352-179=
300 50 2
- 100 70 9
______________
100 70 3= 173
53-27=
26
What are the combined number of cereal voters?
15
What is a basic fact family of 1400, 600, and 800
8+6=14
6+8=14
14-8=6
14-6=8
What are the four fact families of 525, 225, 750?
525+225=750
225+525=750
750-525=225
750-225=525
495-240=
400 90 5
- 200 40 0
______________
200 50 5= 255
75-50=
25
How many more people like Kix compared to Cheerios?
1
What is a basic fact family of 1,000, 800, 1,800
10+8=18
8+10=18
18-10=8
18-8=10
What are the four fact families of 1,000, 400, 600?
400+600=1,000
600+400=1,000
1,000-400=600
1,000-600=400
902-538=
900 0 2
- 500 30 8
______________
300 60 4= 364
323-160=
163
What is the difference in those that like Life and Corn Flakes and those that like Kix and Cheerios?
5