3.5x0.4=1.4 3.5 x0.4 ￣￣￣ 1,4
列竖式计算3.5x17.3+6.73.5解答:3.5x17.3+6.73.5=3.5x(17.3+6.7)=3.5x24=3.5x2x12=7x12=84
1.2/3.5=1.2÷3.5=12 ÷ 35 = 0.34竖式见图:
8*0.12=0.96; 1.9*3.5=6.65; 2.3*1.29=2.967; 0.401*0.3=0.1203; 0.45*0.96=0.432; 0.17*0.71=0.1207≈0.12;(得数保留两位小数)
1.62*3.5=5.67; 1.62 * 3.5 . 810 486 5.670 26.52÷3.9=6.8;1.03*25=25.75; 1.03 * 25 . 515 206 25.75 37.1÷0.53=70;
(1)6.8*3.5=23.8; 6.8 * 3.5 . 340 204 . 23.80 (2)3.1*0.47≈1.46; 3.1 * 0.47 . 217 124 . 1.457 (3)0.416÷1.6=0.26;(4)92.5÷2.3≈40.2;(5)12.4÷11=1.1 ? 2 ? 7 . 1.12727 11 12.4 11 . 14 11 . 30 22 . 80 77 . 30 22 . 80 77 . 3
0.85÷3.5=0.2428571
(1)0.68-0.125=0.555 (2)6.24*3.5=21.84 (3)1.225÷0.49=2.5
164.9 * 3.5 577.15