Math Facts
__+__=9
__+__=9
__+__=9
The teacher spend $23 on pencils for her students. Then she spend $36 on markers. How much money did she spend in all?
$59
5+8+2=__
Matt says 23-12 is the same as 12-23. Do you agree with him? Why or why not?
No, subtraction can not be inversed.
What is the answer to an addition problem?
sum
__-__=5
__-__=5
__-__=5
Multiple Answers
Alysa has $85 in her bank account. Dylan has $38 in his bank account. How much more money does Alysa have than Dylan?
7+5=__=6
6
Anna says when you add two odd numbers together you will always get an odd number. Do you agree with her? Why or why not?
No they equal an even number.
3+3=6
1+1=2
7+7=14
What is the answer to a subtraction problem?
Difference
18-9=__
9
Troy picked 118 blueberries yesterday and 223 blueberries today. How many blueberries did he pick in all?
341 blueberries
9+5=8+__
6
Do all doubles facts (5+5, 6+6) have odd sums. Why or why not?
Yes because the two addends are the same as breaking the number into 2 equals parts.
What are the two numbers being added together called?
Addend
78
Paul watched an ant walk 40mm, then 30mm. It turned and walk 16mm more. How far did it walk?
86 mm
7+4+3=__+4
10
Sue says that you can use a Make Ten fact to solve 8+7. How can you do that?
Break up 7= 5+2
8+2=10
10+5=15
What is the word for the number that is being taken away in a subtraction problem?
Subtrahend
__=30-10
20
Frank is growing a plant. This week it is was 63 cm tall. That is 18 cm taller than it was last week. How tall was the plant last week?
45 cm
12-8= __+1
3
The teacher has $15 in her wallet an $5 on her table. How much more money does she have in her wallet than the table?
15-5=10
What are the 4 math operations?
Addition, subtraction, multiplication, division