Thursday, 4 June 2015

Whainga ako: solve number problems.
Whainga mahi: use doubles and tens to solve and show your working out.
(Remember to show your working out - look at the example below.

Example: 27+6=
Working out: (27+3=30) (6-3=3)  (30+3=33)
1.    24 + 6 =
1. 24 + 6=30  6-6=0  30+0=30
2.    56 + 6 =
2.56+4=60   6-6=0    60+0=60
3.    78 + 9 =
3.78+2=80  2-9=7     80+7=87
4.    95 + 6 =
4.95+5=100  5-6=1    100+1=101
5.    23 + 9 =
5.23+7=30    7-9=0    30+0=30
6.   49 + 7 =
6.49+1=50   1-7=6    50+7=57
7.   87 + 9 =
7.87+3=90   3-9=6    90+6=96
8.   63 + 9 =
8.63+7=70   7-9=2     70+2=72
9.   38 + 7 =
9.38+2=40   2-7=5    40+5=45
10.   24 + 9 =
10.24+6=30  6-9=3    30+3=33
11.  24 + 9 =
11.24+6=30  6-9=3    30+3=33
12.  38 + 5 =
12.38+2=40  2-9=8    40+8=48
13.   67 + 8 =
13.67+3=70  3-8=5    70+5=75
14.  56 + 5 =
14.56+4=60  4-5=1    60+1=61-