直接写出得数:
56.8﹣43.2= = (0.9+0.1)÷1= =
200÷25÷4= 1= 1.89×(0.6﹣)= 4.8×0.02=
直接写出得数.
26×= ﹣= += ÷= 0.56×3= 100÷0.25=
修路队修一段公路,前几天修的米数是剩下的,今天又修了42米,这时以修的米数是剩下的80%,这段公路长 米.
直接写得数.
9.09+1.1= 10÷0.1= 3﹣1.45= 5﹣1.4﹣1.6= 1÷0.25×4=
1÷(﹣)= ××= 4﹣﹣= ﹣÷4= 5÷﹣÷5=
直接写出得数.
= 5.6÷0.07= 1000﹣374= =
2.5×40= = = =
= =
试一试
(1)45+15×6= (2)250÷5×8=
(3)6×5÷2×4= (4)30×3+8=
(5)400÷4+20×5= (6)10+12÷3+20=
(7)(80÷20+80)÷4= (8)70+(100-10×5)=
(9) -= (10) ++=
(11)6.3÷0.07= (12) ×13=
(13)3-1.95= (14) 0÷=
(15) 0.5-= (16)540÷9=
(17) -= (18) 0.23+177%=