北师大小学四年级数学下册脱式计算竖式计算

1、45.2 33.5=1.37+2.65=54 X (3.94+6.86)3.2+0.12 )X 0.80.175X 0.25 X 48.25+1.55=7.3 2.25=1.8 X 0.25+4.228.7-17.9+4.52.4X 3-6.18102.45=3.7+2.36=12X (15.4-12.2)7.8+4.56+2.25.01-1.9+4.9912.7+12.511.65 7.39=103.14=3.6 x 4-2.50.65x 6.4-0.65 x 5.478x 0.25 x 0.41.44 x 3.98=1.36 x 0.8=90 x (3.6-1.8)3.6+5.8-1.2

2、x 50.36 x(6.1-4.6) x 0.81.3X 0.25 =1.44 X 3.98=6.2+3.5 X 25X 47.32-4.37 X 0.94.05X 0.5+0.814.8 X 0.25=4.8 X 1.2=1.25 X 320.563.48 0.44 6.522.8+2.25 27.5 X 1.5 )9.8 X 0.5=9.8X1.3=0.5 X 4+0.5X 67.5 - 2.3 X 0.4 )-0.2 52.16+0.9X32.42X1.1=3.14X1.5=2.6 X (0.175 - 0.25)70.8- 1.25-1.75(80.8) X1.250.12X50=2.

3、6X0.5=0.125 X 4.7 X 812.5- 1.68 - 2.325679.6X0.8=3.25X1.8=19.6 一 0.48 - (5.4 - 0.9 ) 1.92 X (2.3+10.5 - 15) 18 一 0.6 X (8-6.5 )4.8X0.9=7.2X9.94.75X99 4.7570.8- 1.25 -1.750.15X0.63=1.8 X 0.85=93-0.31 一34.818.35.1911.12.5X80.411.73+40.39=32.8520.39=138-0.25 - 0.4125X 8.80.45X983.8+3.54=3.05- 2.9=51.8

4、-4.8 X( 2.03 - 0.18 )1.25 X 32X 2.51.6 X 3.2 - 3.211.65 - 7.39=10 - 3.14=0.7 X 7.8=8534.7=4.28+0.53 3.373.2+1.27 2.491.54+2.08+3.621.36 X 0.8=1.44 X 3.98=9.5+4.85 6.365.6+2.7+4.44.6 (1.75+2.08)4.02 3.5+0.9870.8 1.25 1.7554.19+2.832.13X 4=4.8X 0.3=2.6+1.4 X 3(8+0.8) X 1.252.5X 0.61.8 X 0.58.25+1.55=7

5、.3 2.25=2.5X 2.8X 41.87 X 2.3=10 0.34 0.6612.8+2.04 X 9.56.15 X 9.4 - 421.8 X 0.85=48X 0.15=4.5 X 3.6+5.2 X 0.354.5 X 0.9+5.5 X 0.935.7+14-30.80.15 X 0.63=3.7+2.36=10.2- 8.75=9.8 X 1.3=654X 0.9=1.6 X (2.25+10.5 -1.5)90-(3.6 - 1.8)3.4 X 7.8 - 3.92.6 X 0.8=2.15 X 2.1=0.36 一 (6.1 4.6)X 0.854 - (3.94+6.86)0.175 -0.25 X43.25X1.8=4.8X1.3=96X (15.412.2)2.4X3-0.189X 0.3 X(86.5)1.25+2.41=1.3 0.56=7.8+4.56+2.212.7+12.5