October 2018 1 12 Report

Obliczcie ale nie z kalkulatora tylko np jak jest to działanie :

(-12) + (-8) - ( +7) - (-9)= -12 - 8 - 7 +9 = -27+9= 18

a zadanie 3 jest takie :

1. [(-16) - (-4)] - (-8 + 6)

2. [-(+11) - (-6)] + (-5 +8)

3.(-19) - [-(-18) - (+7)] + (-34)

4.-(+27)-(-26 - 17) + (+14)


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