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Stage 1 - Stage 3

Evaluate $9+\left(-7\right)-4$9+(−7)−4

Easy

< 1min

Evaluate $-9+6-\left(-17\right)$−9+6−(−17)

Easy

1min

Evaluate $20+\left(-14\right)-\left(-2\right)-18$20+(−14)−(−2)−18

Easy

1min

Evaluate $6-\left(13-3\right)$6−(13−3)

Easy

< 1min

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