In this lesson, we will learn how to add by using the fact that one ten equals ten ones and decide whether we need to rename the result or not.
Q1:
Make a ten to find 35+5.
Q2:
23 is modeled as shown.
By using the place value model to add 9 to 23, we will not be able to add all the beads in the ones column, so we will regroup the ones.
Which of these models shows the regrouping?
Fill in the blank: 23+9=.
Q3:
Khalid has 69 marbles. His friend gives him 4 more. How many marbles does he have now?
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