Our class puppet wants to work out 9 + 2. Watch: the puppet starts at 1 and counts all the way up… 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11. That took ages!
Hands up: was there a quicker way? What would you tell the puppet?
Four sums on the number line. For each one, watch where we stand first, then watch the little jumps. Be ready to say the landing number aloud (that is the number where the marker stops).
Notice the third one carefully: when we add zero, the marker does not move at all.
Today we explore: start on the bigger number, then count on with little jumps. We will try 6 + 1, then 10 + 2, then 13 + 0, then 14 + 2. Say the landing number (where the marker stops) before we check each one.
Count on from the bigger number
In your maths copy, write this number sentence once, carefully:
- 9 + 2 = 11
Form the + and = signs neatly.
Today we work through these together: 8 + 1, then 11 + 2, then 15 + 0, then 17 + 2. Say where you will stand before each jump. The zero one is the quiet trick — watch for it.
Count on 1 or 2, or stay for 0
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