Directed Numbers

Hong Kong

Stage 1 - Stage 3

The number $9$9 is plotted on the number line below.

Find the value of $9+4$9+4.

Easy

Less than a minute

Find the value of $8+9$8+9.

Find the value of $16+9$16+9.

The number $-7$−7 is plotted on the number line below.

Find the value of $-7+9$−7+9.

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