Mental Maths
Monday
Counting backwards in twos within 100 from different staring points :
10 8 6 4 2, 20 18 16 14 12, 30 28 16 14 12, 40 38 36 34 32, Can you see a pattern?
28 26 24 22, 16 14 12 10 8, 22 20 18 16 14,
Tuesday
Counting backwards in twos within 100 from different starting points :
9 7 5 3 1, 19 17 15 13 11, 29 27 25 23 21, 39 37 35 33 31, Can you see a pattern?
23 21 19 17, 33 31 29 27 25,
Wednesday
Mentally subtract a single digit from 10 using counting on
Use your 100 square as a visual aid
10 - 9 = _ count on from 9... add on 1 makes 10
10 - 8 = _ count on from 8... add on 2 makes 10
10 - 7 = - count on from 7 … add on 3 makes 10
Have a go at playing Hit the Button!
Thursday
Mentally subtract a single digit from 10 counting back
Use your 100 square as a visual aid
10 - 9 = _ count back from 10 …. take away 9 answer is 1
10 - 8 = _ count back from 10 …. take away 8 answer is 2
10 -7 = _ count back from 10 …. take away 7 answer is 3
Have a go playing 'Daily 10'