## 62) Near Double

Doubling and Halving to 20: Strategy Concept

### Activity Support Materials

core answer. Place Blocks and calculations in red on activity board

harder answers. Place Blocks and calculations in red on activity board

### Mathematics

Develop the strategy of near double addition, adding one more than double 6, 7, 8, 9.

Prior knowledge of double bonds 6, 7, 8, 9 and the commutative property of addition is needed.

• double bond
• near double
• one more
• equals

### Core Activity Support Materials

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## Differentiation

### A little easier

##### Part-Part-Whole representation

Use Bond Blocks organised with part-part-whole to calculate the double, plus one more. For example,

### A little harder

##### Activity 62 near double one less

Develop the near double strategy of subtracting one from double 6, 7, 8, 9.

Complete Activity 62 Doubling and Halving to 20: Near Double Strategy Concept a little harder.

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### Progression

In the next activity students develop fluency with near double bonds of 6, 7, 8 and 9. This is an abstract activity using numbers only, it builds on the current representational activity that uses Bond Blocks. Go to

##### Activity 63

Doubling and Halving to 20: Near Double, Strategy Fluency