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Number Line Addition

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Number Line Addition

Add two-digit numbers by starting at the first number, jumping forward in tens, then jumping forward in ones. Write each total.

Choose the total

Circle the correct answer for each addition question.

1.What is 26 + 13?

2.Find the total of 35 and 42.

3.Jai spots 18 birds on a rainforest walk, then sees 24 more. How many birds does he spot altogether?

4.What is 46 + 28?

Show your number-line jumps

For each question, begin at the first number. Draw jumps of tens first and ones second, then write the total.

5.Start at 32. Add 26 by jumping tens and then ones. Draw your jumps and write the total.

6.Begin at 64 and add 23. Show the tens jump, the ones jump and the answer.

7.Start at 27 and add 15. Draw a jump of one ten, then a jump of five ones. What total do you reach?

8.Zach walks 38 metres along a rainforest track, then walks another 34 metres. Use number-line jumps to find how far she has walked altogether.

Match each addition to its total

Write the letter of the matching total beside each addition.

9.Match each sum to its total.

A. 21 + 36
B. 44 + 22
C. 53 + 16
D. 37 + 46
E. 62 + 17

b. 57
d. 69
c. 83
e. 79
a. 66

Stretch your thinking

Use jumps on a number line to solve the problem. Explain one step you took.

10.Oliver counts 24 frogs near one rainforest stream and 35 near another. Later, he finds 18 more. How many frogs does he count altogether? Show your jumps or equations.