Maths Strategy - Number of the Day

Learn: To solve a problem by using Place Value.

Example: 41 - 18 =

40+1 - 10+8

30 + 1 - 8

22 + 1 =23

I know my answer is correct because I used Place Value.

23 + 18 = 41

20 + 3 + 10 + 8

30 +10 + 1 =41

Maths Strategy

1. 92 - 47 = 45

90 - 40 = 50 + 2 -7

43+2=45

2.62 - 27 = 35

60 - 20 = 40+2-7

33+2 = 35

3.31 - 17 = 14

30 - 10 =20+1-7

13 + 1 =14

4.301 - 17 = 134

300 - 100=200

200 - 60 =140

140 - 7 = 133

133 + 1=134

5.121 - 86

100 - 80=20

20 - 6=14

14+20=34

34+1=35