Addition and Subtraction Fact Families
If 10-5= 5 the addition family would be
What is 5+5=10
50-24
What is 26?
24 x 10
What is 240?
5x4=20 so a division family would be
What is 20/5=4 or 20/4=5
Sum
What is the answer to an addition problem?
If 14+6=20 the the subtraction family would be
20-6=14 or 20-14=6
102-12
What is 90?
36x7
What is 252?
If 21/7=3 then the multiplication family would be
What is 7x3=21?
Difference
What is the answer to a subtraction problem?
If 20+40=60 the subtraction family would be
60-40=20 or 60-20=40?
4050- 205
What is 3845?
123x6
What is 738?
30x5=150 so a division family would be
What is 150/30=5 or 150/5=30?
Product
What is the answer to a multiplication problem?
If 100-30=70 the addition family would be
What is 70+30=100?
1000-567
What is 433?
What is 11,361?
If 20/4=5 then a multiplication family would be
What is 4x5=20?
Quotient
What is the answer to a division problem?
All fact family consist of this
Same numbers
When you are subtracting with zero's you have to do this
Borrow from greater place values
When multiplying you add this when you have to create another row in your answer
What is a 0?
Multiplication and division are considered what kind of operations?
What is opposite?
Another way to multiply is by using this
What is Repeated addition?