The 3 Maths Strategies

Strategy 1: Split 

47 + 51= ?

How to Split:

Split the tens, then add them and find the answer.

40 + 50 =  90 

Then add the ones and find the answer.

7 + 1 =  8 

Then add both answers together and find what your answer will be. 

90 + 8 = 98

So your answer is 98.

Strategy 2: Compensation

59 + 44 = ?

How to Compensate: 

First, you keep the first number normal and round the other number to the nearest ten and find the answer.
59 + 40 = 99

Then add how many you took away from 44 and then you will know what your answer is.
99 + 4 = 103

So your answer will be 103. 

Strategy 3: Jump

89 + 12 = ?

How to do Jump:

First, prepare your number line.

Then, put the number 89 on the number line.

 

After that, jump 10 steps or 1 jump for ten. If you are doing another sum with this strategy, jump as many times the bigger number tells you to.

Then you jump to the ones. 

 So the answer is 102.