1.

Evaluate the following.1. 12 - (-25)=2. (-30 + 10) - (40 - 20)=3. 9 + 23 - (-25) - 70=4. (-237 - 1 + 8] + [234 - (-10)] - [15 + (-17)]=5.-62-[(-30) + (-50)]=6. 609- (-19) + (-19) +20 + (-20) =​

Answer»

Answer:

1. 12−(−25)

=12−(−25)

=12+25

=37

2.−30+10−(40−20)

=−20−(40−20)

=−20−20

=−40

3.9+23−(−25)−70

=32−(−25)−70

=57−70

=−13

4.−237−1+8+234−(−10)−(15−17)

=−238+8+234−(−10)−(15−17)

=−230+234−(−10)−(15−17)

=−230+244−(15−17)

=14−(15−17)

=14−(−2)

=16

5.−62−(−30−50)

=−62−(−80)

=18

6.609−(−19)−19+20−20

=628−19+20−20

=609+20−20

=629−20

=609

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