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Thursday, 1 December 2011

Mathematic Year 1-Activities



Count On

count_on

count_on

Understanding Addition

Additon

addition

Subtraction

subtraction
subtraction

subtraction


Addition - Exercise


1.Complete the following sums.

a)+= ________
b)+= ________
c)+= ________

2. Copy and complete these. Make each one different.
_______ + __________ = 20
_______ + __________ = 20
_______ + __________ = 20
_______ + __________ = 20
_______ + __________ = 20
_______ + __________ = 20
3. Count on.
3) Write the number that is hidden.
a) 5 +  = 15

b)  + 8 = 16

c) 11 +  = 19

d)  + 10 = 20


Subtraction - Exercise

1) Wash away three shells. Write down your answer.
_______ - ________ = _________
_______ - ________ = _________
_______ - ________ = _________
2) Count Back
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.
darts
Add three possible scores in your head.
  • What is the greatest total you can get?
  • What is the least total you can get?
  • Show one way you can make a total of 90.

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.

4) Look at this number line.
.
What numbers could be located at points A, B, C, D and E?


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