Red
Write an addition equation that will help you to solve 11-9=
9+2=11
Start at 67. Count on by 10s to 117. Show your counting on an open number line.
Check whiteboard
Draw an open number line on your whiteboard to solve 50+35
85-check whiteboards
Avery and Stryker play a video game. Avery's score is 78. Stryker's score is less than Avery's score. What could Stryker's score be?
A. 77
B. 78
C. 79
D. 80
A. 77
50-30=
20
Kingsley has 11 stickers. He uses 4 of them for an art project. Kaylee has 10 stickers. How many stickers should she use so he has the same number as Kingsley?
11-4=10-____
3 stickers
11-4=7 and 10-3=7
There are 16 people on a bus. 7 people get off the bus. Martin says there are 9 people left on the bus. Do you agree or not agree with Martin's thinking? Explain.
Yes, 16-7=9
PPT: Which word describes Line P?
A. shortest
B. longest
C. smallest
D. middle
B. longest
Azi has 80 sports cards. He gives 60 sports cards to a friend. How many sports cards does Azi have left? Write an equation to solve. Use drawings or models to show your work.
80-60=20 cards
Check whiteboards
Write an addition equation that will help you to solve 40-30=
30+10=40
Chase has 18 berries. He uses some of them to make muffins. Now there are 10 walnuts left. Write a subtraction equation to show how many berries Chase uses.
18-10=8
What is 10 less than 52? Write an addition equation that helps you solve it.
10+42=52
PPT: Look at the place value blocks. Write the numbers to make the sentences true.
_____ is greater than ______
____ is less than _______
43 is less than 48
Hailey wants to find the length of a stapler using paper clips. Where should she put the first paper clip?
Right at the edge of the stapler.
Start at 46. Count by 10's to 116. Show your work on a number line.
Check whiteboard.
Nova is finding all the ways to make 52 using tens and ones. Show on a whiteboard how many ways she can make 52 using tens and ones
6 ways
How do you use a hundred chart to find 70-30? Explain the steps.
Start at 70. Move 3 tens (rows) up.
Use mental math to solve.
87-10=
87+10=
77 and 97
Solve the subtraction equation 13-5 and then write an addition equation that helped you solve it.
13-5=8 and 5+8=13
What is 10 less than 48? Write an addition equation that helps you solve it.
38+10=48
PPT: How many fewer hamsters are there than turtles? Write an equation to explain your answer.
6-4=2 fewer hamsters
PPT: Which could NOT be used to find the length of the pencil?
A. string B. paper clips C. connecting cubes D. balance scale
balance scale
The model shows 8+85. Is the model correct? Explain how you know.
It is not correct because it shows 8+75. You need one more ten.
Colsen has 15 stickers. He uses 9 of them for an art project. Archer has 12 stickers. How many stickers should he use so he has the same number as Colsen?
15-9=12-_____
6 stickers
Solve 47+8 on your whiteboard with tens and ones.
55 Check whiteboard