Addition
9+7=
16
12-7=
5
What number comes before 57?
56
What number sentence would go with this array?
0 0 0
0 0 0
0 0 0
3+3+3=9
The answer to an addition problem is called a _____.
sum
3+5+9=
17
What subtraction sentence would go with a part-part-whole mat that has a part of 3 and a part of 7?
(Teacher will draw)
10-3=7 or 10-7=3
True or false?
72 is an odd number.
False
* * * * *
* * * * *
* * * * *
* * * * *
4 rows
5 columns
The answer to a subtraction fact is called the _____.
Difference
Tim has 12 toys. He got 5 more from his parents. How many does he have now?
17
20 birds were in a tree. 12 flew away. How many are left in the tree?
8
56___65
Write the symbol and what the symbol stands for.
<
less than
Draw the array that goes with this number sentence. 6+6+6+6=24
000000
000000
000000
000000
Do you add or subtract to find the answer to the following problem?
Tod had 15 pieces of gum. He gave 6 away to his friends. How many does he have now?
Subtract
Sam had some apples. He gave 5 to Beth and now he has 6. How many did he start with?
11
Liam has 9 pens and John has 6. How many more pens does Liam have than John?
3
10 more than 45 is_____.
55
Draw the array and write the number sentence that matches this story.
Grams has a flower garden with 4 rows of roses. There are 5 roses in each row. How many roses are in the entire garden?
00000 20
00000
00000
00000
Do you add or subtract to find the answer to this problem.
There are 18 dogs and 9 bones. How many more bones do we need to be able to give each dog a bone?
Subtract
Jamie had 5 eggs. She used 3 of them to make pancakes and decided to go to the store to buy more. She bought a dozen (12) more. How many does she have now?
14
Rita and Naomi went to the store and each bought chips for a party. Rita bought 4 and Naomi bought 6. After the part there were only 2 bags of chips left. How many bags of chips did everyone eat?
WHAT NUMBER SENTENCES DO YOU USE TO SOLVE THIS?
4+6=10
10-2=8
27= 2 tens and 7 ones
What number would I have if I added 3 more tens?
57
Spencer put his toy cars in an array. The array matches this number sentence. 7+7+7=21
What would the number sentence look like if he added another row to his array?
7+7+7+7=28
6+3=9 3+6=9 9-3=6 9-6=3
This is called a _____ ________ because each number sentence has the _______ numbers.
This is called a FACT FAMILY because each number sentence has the SAME numbers.