1. –
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1)5+3X4=
2)20 : (5x2)X2=
3)20 : 4 x(12-7)=
4)35 : 5-30: 30 =
)80 – ( 5+5X5)=
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15+8+35+7+12=
5X3X6=
50-_____+19=50
80+ ------+5=100
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