Jonathan Add/Sub Yr 7-1 WALT solve addition problems with tenths by changing one number into a whole number.

2.5+3.9=6.4                                 

2.5-0.1=2.4

3.9+0.1=4.0

2.4+4.0=6.4

4.6+1.8=6.5

4.6-0.2=4.8

1.8+0.2=2.0

2.0+4.8=6.8

3.1+6.3=9.6

3.1-0.1=3.2

6.4+0.1=6.4

6.4+3.2=9.6

2.8+2.5=5.3   

2.8+0.2=3.0

2.5-0.2=2.3

3.0+2.3=5.3

4.8+6.7=11.5

4.8+0.2=5.0

6.7-0.2=6.5

5.0+6.5=11.5

13.7+4.5=18.2

13.7+0.3=14.0

4.5-0.3=4.2

14.0+4.2=18.2

9.9+4.6=14.5

9.9+0.1=10.0

4.6-0.1=4.5

10.0+4.5=14.5

6.6+8.8=15.4

8.8+0.2=9.0

6.6-0.2=6.4

9.0+6.4=15.4

4.2+5.8=10.0

5.8+0.2=6.0

4.2-2=4.0

6.0+4.0+10.0

7.3+7.5=14.8

7.5+0.3=7.8

7.3-3=7.0

7.0+7.8=14.8

11.1+6.8=17.9

6.8+0.1=6.9

11.1-0.1=11.0

11.0+6.9=17.9

5.8+9.3=15.1

5.8+0.2=6.0

9.3-0.2=9.1

9.1+6.0=15.1

7.2+8.4=15.6

8.4+0.2=8.6

7.2-0.2=7.0

7.0+8.6=15.6

13.5+8.9=22.4

8.9+0.1=9.0

13.5-0.1=13.4

13.4+9.0=22.4

6.5+8.1=14.6

8.1+5=8.6

6.5-5=6.0

6.0+8.6=14.6

9.3+7.4=16.7

7.4+3=7.7

9.3-3=9.0

7.7+9.0=16.7