7-5 Count on an Open Number line

Count in groups of 10, starting from 55. Which number will you land on after 3 groups?

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CCSS.1.NBT.A.1

Choose the number line that matches the sentence: Start at 87. Count on by 1s to 95.

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CCSS.2.MD.B.6

Choose the number line that matches the sentence: Start at 52. Count on by 10s to 92.

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CCSS.2.MD.B.6

Which equation is shown on the number line?

• 29 + 3 = 32

• 29 + 30 = 59

• 29 + 4 = 33

• 29 + 40 = 69

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CCSS.1.NBT.C.4

CCSS.2.MD.B.6

Ben showed part of his counting on this number line.

We can see that Ben counted by ( ) from ( ) to ( ).

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CCSS.3.OA.D.9

There are 78 people at the concert.

30 more people arrive.

How many people are there at the concert now?

• 81

• 88

• 98

• 108

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CCSS.1.NBT.C.4

CCSS.2.MD.B.6

Lorna starts counting at 48.

She counts on by 10s four times.

Then she counts on by 1s three times.

What was the last number she counted?

Show her counting on the open number line.