Maths

By Jade

Rounding and Compensating

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398+678=1076

400+678=1078

1078-2=1076

+2

Place Value

132+642=764

100+600=700

30+40=60

2+2=4

47+76=123 40+70=110

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7+6=13

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823+153

800+100=900

20+50=70

3+3=6

25633+34324=59957

20000+30000=50000

5000+4000=9000

600+300=900

20+30=50

3+4=7

Fractions

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A fraction can be simplified if you can find a number that divides exactly into both the numerator and the

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21

=

14

3

7 divides exactly into 14

and 21

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A fraction in its simplest form when the numerator and denominator can not be divided again.

20

24

=

10

12

2 divides into both ten and twelve

denominator.

2

=

5

6

Algorithm

x

34

72

54

612

3

2

1

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