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36:9+63:7= 20+30:5+6x8= 5x8+28:4-27= 100:10+50:10+7:1 54:6+42:7-24:8=

Răspuns :

4+9=13
20+6+48=74
40+7-27=20
10+5+7=22
9+6-3=12
36:9+63:7=4+9=13
20+30:5+6x8=20+6+48=74
5x8+28:4-27=40+7-27=47-27=20
100:10+50:10+7:1=10+5+7=22
54:6+42:7-24:8=9+6-3=15-3=12