October 2018 2 16 Report

Matematyka wokół nas z.3/188podr. tylko a) prosze jak najszybciej

1. (-12)+(-8)-(+7)-(9)=

2. 8-(-9)+ (-11)-(+5)=

3. (-21)+(-7)-(+15)-(32)=

4.-(-13)+(-2)-(+16)+(-5)=

wiem tylko,że w :

1. powinno wyjśc:-18

2.1

3.-11

4.-10


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