Use the number $3$3 plotted on the number line, to help you find the value of $3+9$3+9.

$3+9$3+9$=$=$\editable{}$

Easy

Less than a minute

Use the number $9$9 plotted on the number line, to help you find the value of $9+5$9+5.

Use the number line to help you find the value of $1+34$1+34.

Use the number line to help you find the value of $33+8$33+8.

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uses mental and written strategies for addition and subtraction involving two-, three-, four and five-digit numbers