Singapore Maths in Year 1

Addition and Subtraction:

Bridging through 10

Singapore Maths Scheme

• A fundamental component of the Singapore Maths Scheme is using the children’s knowledge of number pairs for ten (1+9, 2+8, 3+7, 4+6, 5+5) to help them with addition and subtraction (i.e. ‘bridging through ten’).

3 stages in any calculation

1. Concrete: using objects

2. Pictorial: drawing a picture

3. Abstract: writing a sum

Addition

9 + 3 =

1. Concrete: use cubes for 9 and 3

9 cubes

in one egg box

3 cubes in the other egg box

Move cubes from one box to make 10 in the other box

2. Pictorial – showing working

9 + 3 = 12

1 2

3. Abstract – written down

9 + 3 = 12

Subtraction

13 – 6 =

1. Concrete: use cubes

Use cubes to show the

first number

(13)

Move cubes to subtract the second number (6) from the ten

Regroup: combine all the cubes

2. Pictorial – showing working

13 – 6 = 7

10 3

4

3. Abstract – written down

13 – 6 = 7