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Hong Kong
Stage 1

Patterns in subtraction III

Interactive practice questions

We know that $14-13=1$1413=1.

Use this to find:

a

$34-13=\editable{}$3413=

b

$44-13=\editable{}$4413=

c

$54-13=\editable{}$5413=

d

$74-13=\editable{}$7413=

Easy
Approx a minute

Use what you know about subtracting to find:

We know that $29-14=15$2914=15.

Use this to find:

We know that $38-25=13$3825=13.

Use this to find:

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