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Mandarinka [93]
3 years ago
5

Explain why u would make one of the ascends a tens number when solving an addition problem

Mathematics
1 answer:
Dimas [21]3 years ago
5 0

Children will use the Make a Ten strategy in this lesson, along with other strategies. Remind children that if they are adding two numbers such as 8 + 5, they can regroup the numbers to make adding easier. Tell children that they can take 2 from the 5 and add the 2 to 8 to make a ten. Also remind them that they must remember to subtract the 2 from the 5, leaving a 3, so they add 10 and 3 and get 13. Tell children that they will use this strategy to add two-digit numbers.

Materials: overhead projector, ten-frames and counters, tens and ones workmat, bundles of 10 craft sticks and single sticks, large number line, and large hundred chart

Preparation: Prepare a tens and ones workmat and a ten frame for use on the overhead. Make 9 bundles of craft sticks, 10 per bundle, using rubber bands to hold them together. Or use tens and ones blocks. Make a large number line and hundred chart for the classroom.

Prerequisite Skills and Concepts: Children should know the addition facts to 20 and the strategies used in learning them.


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