Lesson 7: Counting Back to Subtract
The answer to a subtraction problem is called the
What is the difference?
Used to solve a subtraction problem by counting backward.
What is the count back strategy?
This means to tell if a set (group) has more or less than another set (group). (pg. 83)
What is compare?
This is a group of four related addition and subtraction facts that can be made from the same numbers. (pg. 91)
What is a fact family?
There were 13 people in the subway car and 7 people got off at the next stop. (pg. 101)
What is 6?
When we count back to subtract, the numbers get
What is smaller?
This is 10 - 3. (pg. 77)
What is 7?
This is the result of subtracting one number from another. (pg. 83)
What is difference?
These are addition or subtraction facts that use the same numbers. (pg. 91)
What are related facts?
(pg. 102)
11 - 4 = 7
4 + 7 = 11
7 + 4 = 11
What is the finished fact family for 11?
Left, Minus, Difference, Fewer, Take away, How many more. (pg. 71)
What are some subtraction keywords?
This is 14 - 4. (pg. 76)
What is 10?
There are ____ more blue hats than red hats. (pg. 86)
What is 7 - 5?
The adoption even had 8 rabbits and 10 cats. (pg. 97)
How many rabbits and cats did it have in all?
The group of two addition and two subtraction facts that use the same numbers. (pg.100)
What is a fact family?
In all, there are ______ shapes. (pg. 73)
How many shapes are there in all?
This is taking a part away from a whole to find the leftover part. (pg. 76)
What is subtraction?
A) Leaves
B) Sunflowers
C) Both are equal
(pg. 90)
Are there more leaves or flowers?
(pg. 98)
9 + 7 = 16
7 + 9 = 16
16 - 9 = 7
16 - 7 = 9
What is the fact family of 16?
Addition and subtraction facts that use the same numbers. (pg. 100)
What are related facts?
_____ of those shapes are triangles. (pg. 73)
What is 4?
There are 9 people still waiting in line to ride the carousel. (pg. 79)
What is 14 - 5?
Julia has 10 baseball cards. She has 4 more cards than Raul. (pg. 88)
How many baseball cards does Raul have?
(pg. 99)
14 + 8 = 22
8 + 14 = 22
22 - 14 = 8
22 - 8 = 14
What is the fact family of 22?
You can count back to ______. (pg.100)
What is solve subtraction problems?