0.7*13/11-4.4*3/7-3.3/ 7/3+0.7*9/11

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/09 10:59:00
0.7*13/11-4.4*3/7-3.3/ 7/3+0.7*9/11

0.7*13/11-4.4*3/7-3.3/ 7/3+0.7*9/11
0.7*13/11-4.4*3/7-3.3/ 7/3+0.7*9/11

0.7*13/11-4.4*3/7-3.3/ 7/3+0.7*9/11
0.7*13/11-4.4*3/7-3.3/ 7/3+0.7*9/11
=0.7*13/11+0.7*9/11-(4.4*3/7+3.3*3/7)
=0.7*(13+9)/11-(4.4+3.3)*3/7
=0.7*2-1.1*3
=1.4-3.3
=-1.9

0.7*13/11-4.4*3/7-3.3/ 7/3+0.7*9/11
=0.7*13/11-4.4*3/7-3.3*3/7+0.7*9/11
=(0.7*13/11+0.7*9/11)-(4.4*3/7+3.3*3/7)
=0.7*(13/11+9/11)-3/7*(4.4+3.3)
=0.7*2-3/7*7.7
=1.4-3.3
=-1.9

0.7×13/11-4.4×3/7-3.3÷7/3+0.7×9/11
=(0.7×13+0.7×9)/11-4×1.1×3/7-3×1.1×3/7
=(0.7×22)/11-(4×1.1×3+3×1.1×3)/7
=0.7×2-(7×3.3)/7
=1.4-3.3
=-1.9