Which addend is larger? Put your counter on the larger addend and draw a dot over that addend on the number line.
74 + 22 = ___
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Hands-On
Use number lines to find the sum of two lengths.
Goal:
Goal:
Practice!
Goal: Add lengths on a number line.
Can you add using a number line? Let’s try adding 74 + 22. You will need this number line and a counter.
Hands-On
Move your counter to the smaller addend. How many tens and ones do you see? Write it under the smaller addend.
74 + 22 = ___
2 tens 2 ones
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22 is the smaller addend. It is made up of 2 tens and 2 ones. Can you jump 2 tens to the right? Draw your jumps with your pencil and label them with “+10.”
74 + 22 = ___
2 tens 2 ones
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Great job! Now jump 2 ones to the right. Remember to label your jumps with “+1.”
74 + 22 = ___
2 tens 2 ones
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What is the sum? Move your counter over the sum on the number line.
74 + 22 = 96
2 tens 2 ones
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You did it! 74 + 22 = 96.
Mismatch Game
Mighty Monkey swung 39 feet on the vines. Then, he swung another 17 feet. Which number line helps you add 39 + 17?
The number line should start at 39 and should jump 1 ten and 7 ones. The sum is 56.
The number line should start at 39 and should jump 1 ten and 7 ones. The sum is 56.
Yes! This number line starts at 39 and jumps 1 ten and 7 ones. The sum is 56.
You got # out of # correct.
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Retry button for another attempt.
You got a perfect score. Great job!
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Sums Using a Number Line