# M4-Lesson

```M 4 Lesson 22
Objective
within 200 with and without two compositions of larger
units.
Cards
10+2
2+9
8+2
7+_=9
3+_=6
4+2
3+_=5
2+5
3+5
4+3
2+1
6+2
6+3
7+_=1
2+2
2+1
3+_=1
6+3
3+9
13=3+_
Cards
2+3
1+3
10+4
4+_=13
4+_=7
4+1
4+_=8
2+4
4+5
7+4
4+8
10+5
5+8
6+_=10
7+5
5+5
6+_=10
5+1
2+5
5+_=8
Fluency Subtractions from
Tens
 I say a basic fact. You add 10 to the whole and
continue until I say to stop. Lets practice 10-6
 4,
Fluency: Crossing a Ten
 How many more does 8 need to make a 10?
 2 more
 Complete the number sentence
 8+2=10
 10+1
 11
 8+2+1
 11
 8+3
 11
8+__ =10
Fluency: Crossing a Ten
 7+3
 7+3+1
 7+4
 7+5
 9+1
 9+1+1
 9+1+4
 19+1+4
Application Problem
 There are 38 apples, 16 bananas, 24 peaches, and 12
pear in the fruit basket. How many pieces of fruit are in
 Use any strategy that works for you.
 Here is my strategy
Concept Development
 For this practice look for ways to make 10 ones or 10 tens
 Use the associative property to group the numbers
 Raise your hand when you think you know what the
 3 + 7+ 6
 23+27+16
• What helped you solve so
quickly?
• Lets try another problem
 Don’t solve this in a vertical addition; use mental math
Concept Development
 Talk to your partner using place value
language to explain how you can solve
this problem mentally.
tens, so 20+20=40. Then I added the
ones. 7+3 equals 10, and 40+10 is 50.
 50 plus 16 equals 66.
Concept Development

3 + 7+ 6
 23+27+16
 123+27+16
 How is this problem the same or different as the first
two problems?
 Solve this problem using any strategy that works for
you.
Concept Development

2+ 8+ 5
 32+28+45
 132+28+45
Remember when solving
these problems we want to
look for groups of 10 ones
or 10 tens
Concept Development

1+ 3+ 9+ 7
 Can we add the numbers in any order?

31+23+19+47
 How is this problem the same as the first
one?
 How is it different?
 Choose a strategy to solve. Then use the
place value strategy to explain to your
partner
 Here are examples of how it was solved.
We are going to do more