Question

Calculeaza:
a)7×8+6×7-3×7
9+5×6-25÷5

b)7×6-12+7×10
15-15÷3+2×5×5


c)400+5×8+72÷9-48
300-64÷8+6×6-28

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Answer 1

a)7x8+6x7-3x7 = 7(8+6-3) = 7x11=77

9+5x6-25/5=9+30-5=34

b)7x6-12+7x10 = 42-12+70=30+70=100

15-15/3+2x5x5 = 15-5+50=10+50=60

c)400+5x8+72/9-48=400+40+8-48=400+48-48=400

300-64/8+6x6-28=300-8+36-28=300+36-36=300

Answer 2

Răspuns:

a)7×8+6×7-3×7=56+43-21=99-21=78

9+5×6-25:5=9+30-5=39-5=34

b)7×6-12+7×10=42-12+70=30+70=100

15-15:3+2×5×5=15-5+10×5=15-5+50=10+50=60

c)400+5×8+72:9-48=400+40+8-48=440+8-48=448-48=400

300-64:8+6×6-28=300-8+36-28=292+8=300