5.95÷(1.2+0.5)×5
=5.95÷1.7×5
=5.95×10÷(1.7×2)
=59.5÷3.4
=17.5
好像直接算简便
5.4×{(1.3+2.15)÷0.5}
= 5.4×[(1.3+2.15)÷0.5]
=5.4×[3.45÷0.5]
=5.4×6.9 =5.4×(7-0.1)
=37.8-0.54
=37.26
5.95÷(1.2+0.5)×5
=5.95÷1.7×5
=5.95×10÷(1.7×2)
=59.5÷3.4
=17.5
好像直接算简便
5.4×{(1.3+2.15)÷0.5}
= 5.4×[(1.3+2.15)÷0.5]
=5.4×[3.45÷0.5]
=5.4×6.9 =5.4×(7-0.1)
=37.8-0.54
=37.26