(32×75×12)÷(15×24×8)簡算
(32×75×12)÷(15×24×8)=288000÷2880=100
√9分之2+√50-√32化簡帶過程
原式=√(2/9)+√50-√32
=√(2/3²;)+√(5²;×2)-√(4²;×2)
=√2/3+5√2-4√2
=√2/3+√2
=(√2+3√2)/3
=4√2/3
2.5+7.5*(3.64-1.24)怎麼簡算
2.5+7.5*(3.64-1.24)
=2.5+7.5*2.4
=2.5+7.5*2*1.2
=2.5+15*1.2
=2.5+15*2*0.6
=2.5+30*0.6
=2.5+18
=20.5