Computation and Number Sense

Count On

Understanding Addition

Subtraction

Addition - Exercise

2. Copy and complete these. Make each one different.

_______ + __________ = 20 _______ + __________ = 20 _______ + __________ = 20 _______ + __________ = 20 _______ + __________ = 20 _______ + __________ = 20

_______ + __________ = 20

3) Write the number that is hidden.

a) 5 + = 15 b) + 8 = 16 c) 11 + = 19 d) + 10 = 20

a) 5 + = 15

b) + 8 = 16

c) 11 + = 19

d) + 10 = 20

Subtraction - Exercise

1) Wash away three shells. Write down your answer.

_______ - ________ = _________

MIND CHALLENGER

1)Read the story. Complete the related facts.

Ella had 23 pet birds. Fifteen were female and the rest were male.

How many birds were male?

________ - ________ = _________ or ________ + ________ = _________

2) Imagine you threw 3 darts and they all hits this target.

Add three possible scores in your head.

3) There are 4 cubes in each small box.

a) How many cubes are in the big box? b) Write or draw a picture to show how you figured out the answer.

a) How many cubes are in the big box?

b) Write or draw a picture to show how you figured out the answer.

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What numbers could be located at points A, B, C, D and E?

More exercises will be coming soon.

My-Rummy Team

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