Toán Lớp 5: 5,2÷0,2-5,2÷0,5+5,2÷0,25+5,2×3
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Toán Lớp 5: 5,2÷0,2-5,2÷0,5+5,2÷0,25+5,2×3
Comments ( 2 )
5,2:0,2-5,2:0,5+5,2:0,25+5,2×3
= 5,2×5-5,2×2+5,2×4+5,2×3
= 5,2×(5-2+4+3)
= 5,2×10
= 52
5,2 : 0,2 – 5,2 : 0,5 + 5,2 : 0,25 + 5,2 xx 3
= 5,2 : 1/5 – 5,2 : 1/2 + 5,2 : 1/4 + 5,2 xx 3
= 5,2 xx 5 – 5,2 xx 2 + 5,2 xx 4 + 5,2 xx 3
= 5,2 xx ( 5 – 2 + 4 + 3 )
= 5,2 xx 10
= 52