Pages

Tuesday, July 9, 2013

Level 3 maths addition and subtraction

Show how you solve these number problems.  


1.  Maraea is saving to buy a cat.  In 3 weeks she has saved $9, $56 and $72.
Show how to work out how much she has saved altogether.
9 + 56 + 72.  9 + 50 + 70= 129
6 + 2 = 8 .
129 + 8 = 137


2.  Tom saves his money each month to buy a dog.  In 4 months he has saved $36, $78, $203, and $123.  Show how to work out how much he has saved altogether.
36 + 78 + 203 + 123.  30 + 70 = 100
200 + 100 = 300.  100 + 200 = 300.
6 + 8 = 12.  3 + 23 = 26.  12 + 26 = 38.
38 + 300 = 338.


3.   Te Ao is saving to buy a horse.  So far she has saved $17, $160, $72, and $148.  Show how to work out how much she has saved altogether.
17 + 160 + 72 + 148
150(148 + 2 from 17) + 160 = 310
15 + 70 (72 - 2) = 85 + 2 = 87. 310 + 87 = 897



No comments:

Post a Comment