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Hong Kong
Stage 1

Connect addition and subtraction

Interactive practice questions

Consider these three numbers:

$4$4 $8$8 $4$4
a

Write a number sentence of the form

$\editable{}+\editable{}=\editable{}$+=

that uses ADDITION to connect the three numbers.

b

Now write a number sentence of the form

$\editable{}-\editable{}=\editable{}$=

that uses SUBTRACTION to connect the three numbers.

Easy
Less than a minute

Consider these three numbers:

$5$5 $5$5 $0$0

Answer the following questions.

Consider the following image.

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