M 4 Lesson 22. Objective Solve additions with up to four addends with totals within 200 with and without two compositions of larger units. Note: Addends.

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Presentation transcript:

M 4 Lesson 22

Objective Solve additions with up to four addends with totals within 200 with and without two compositions of larger units. Note: Addends are number that we add together

Fluency: Addition Fact Flash Cards _= _= _=1 7+_= _=6 13=3+_

Fluency: Addition Fact Flash Cards _= _= _= _=7 5+_=

Fluency Subtractions from Tens I say a basic fact. You add 10 to the whole and continue until I say to stop. Lets practice ,

Fluency: Crossing a Ten How many more does 8 need to make a 10? 8+__ =10 2 more Complete the number sentence 8+2=

Fluency: Crossing a Ten

Application Problem There are 38 apples, 16 bananas, 24 peaches, and 12 pear in the fruit basket. How many pieces of fruit are in the basket? Use any strategy that works for you. Show your partner your strategy Here is my strategy

Concept Development For this practice look for ways to make 10 ones or 10 tens to help you solve. Use the associative property to group the numbers Raise your hand when you think you know what the answer is Don’t solve this in a vertical addition; use mental math What helped you solve so quickly? Lets try another problem

Concept Development Talk to your partner using place value language to explain how you can solve this problem mentally. I added 23 and 27 first. I added the 2 tens, so 20+20=40. Then I added the ones. 7+3 equals 10, and is plus 16 equals 66.

Concept Development 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 Remember when solving these problems we want to look for groups of 10 ones or 10 tens

Concept Development Can we add the numbers in any order? 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 addition problems. This time we will practice with four addends instead of three

Problem Set Practice with the problem set to practice the grouping numbers to make a new 10 or 10 tens.