1
Mason has 6 apples. He needs 9 apples to make fruit salad. How many more apples does Mason need to buy to have 9 in all? Write an equation to tell the story.
9-6=3, 3 apples
Write two related addition facts that can help you solve the subtraction problem.
17-9=?
8+9=17 and 9+8=17
Look at picture 1, write two equations that match the picture.
4+3=7 and 3+4=7
What doubles fact will help you find 5+6=
5+5=10
23 is _____ groups of 10 and 3 left over.
2
Draw an open number line to show how to count on to find 6+8.
Check number line
Look at picture 2. Write an addition fact that can help you find the missing part.
5+8=13 or 8+5=13
What is the missing part in 13-5=___
8
Cooper draws 7 pictures. Then he draws 9 more pictures. How many pictures does Cooper draw in all? Write an equation to solve.
7+9=16 or 9+7=16
Tell if the equation is true or false. Explain
16-6=9+2
16-6=10 and 9+2=11 False
Look at slide three. Use the picture graph to answer the question. Which two statements are true?
A. There are 8 flowers in all.
B. There are 3 more tulips than roses.
C. There are fewer roses than tulips.
D. There are 4 fewer roses than tulips.
E. There are more roses than tulips.
B and C
Slide 4 There are some bagels in the school lunchroom. 30 of the bagels are in the box. The rest of the bagels are not in the box. How many bagels are there in all?
47 bagels
Nathaniel counts paper clips by 1s. He counts to 109. Which number will Nathaniel say next?
110
Draw a model to show the number 83.
Look at board.
Javier, Emma, and Brianna have goldfish as pets. Jaiver has 6 goldfish. Emma has 8 goldfish. Brianna has 5 goldfish. Javier buys 2 more goldfish. Now how many goldfish do they have in all?
21 goldfish
See slide 5-Count by 10s. Write number
____ tens and _____ ones is ______.
6 tens and 0 ones is 60.
Elijah counts by 10s. 70, 90, 100, 110, 120. Which number does he forget to count?
80
Which number is missing?
14-_____=2+7
Explain how you know your answer is correct.
5
14-5=9 and 2+7=9
Start at 108. Count on by 1s to 113. Make an open number line and show your counting.
Check board.
Write the missing symbol (+, -,or=) to make the equation true. Use precise math language to explain how you chose the symbol.
14=6+3__5
14=6+3+5
Check explanations
Which two of these are ways to show seventeen?
A. 17
B. 7 tens and 1 one
C. 17 tens
D. 1 ten and 7 ones
E. 7 tens and 1 one
A and D
See slide 6. Kalli asks her friends a survey question. The tally chart shows the results. How many friends took the survey? Write an equation to show your work.
6+2+5=13
Kalla has 8 markers. She needs 12 markers to make a picture. How many more markers does she needs to have 12 in all?
12-8=4
Write a doubles fact that will help you find 7+8=___
7+7=14
Ethan is counting by 10s. He counts 22, 32, 42, 62, 72.
What number did he forget to count
52