Addition & Subtraction
Solve: 7+5=
12
Find the missing number: _+6=10
4
Solve: 6+3=
9
True or False: 5+2=7. Explain how you know.
True
Which is longer: a pencil or an eraser?
pencil
Solve: 14−6=
8
Use inverse relationship: If 9+4=13, what is 13−4= ?
9
11+6=
17
True or False: 10−3=8. Explain or correct it.
False
10 -3 =7
Alice measured two ribbons. Ribbon 1 = 7 paper clips, Ribbon 2 = 9 paper clips. How many more paper clips long is Ribbon 2 than Ribbon 1? Write an equation.
9 - 7= 2
Word problem: Mia has 9 crayons. Her friend gives her 6 more. How many crayons does Mia have now? Write an equation and answer.
9 + 6= 15
Find the missing number: 15−_=8
7
Solve: 8+7
15
Decide and explain: 4+6=11 True or False?
False
Class survey — five students like apples, three like bananas, and seven like grapes. Which fruit got the most votes? How many more votes did that fruit get than the least popular?
grapes
4 more votes for grapes than bananas
Two boxes hold a total of 18 apples. One box has 11 apples. How many apples are in the other box? Write an equation.
18 - 11= 7
Given the fact 7+8=15, write two related subtraction sentences.
15-8=7, 15-7=8
show two ways to add: 4 and 9
4 + 9 =13
9 + 4 = 13
Decide if this is true. If false, fix it: 9+5=13.
False.
9 + 5 =14
You measure three toy cars: 5 blocks, 11 blocks, and 8 blocks. a) Order them from shortest to longest. b) What is the total length if you put them end to end? Show work.
Car 1, Car3, Car 2
24
Solve and explain using pictures or numbers: 8+7−5= ?
10
Sam had some stickers. He gave 5 to Ana and now has 12 left. How many did he start with? Show the addition and subtraction that match.
12 + 5= 17, ___ - 5= 12
There are 12 ducks. 5 fly away. Then 4 more come. How many ducks now? Show strategy and equation.
16
Evaluate and explain: 14−6=7. Is it true? If not, show the correct result and one way to check.
False
6+7 = 13
Class survey — five students like apples, three like bananas, and seven like grapes. How many votes did grapes and apples get?
12