解析:
4.5×8.3-9.5×4.4+1.2×4.5
原式=4.5×(8.3+1.2)-9.5×4.4
=4.5×9.5-9.5×4.4
=9.5×(4.5-4.4)
=0.95
33.3×14.8+66.6×5.5-99.9×8.6
原式=33.3×14.8+33.3×11-33.3×25.8
=33.3×(14.8+11-25.8)
=33.3×0
=0
解析:
4.5×8.3-9.5×4.4+1.2×4.5
原式=4.5×(8.3+1.2)-9.5×4.4
=4.5×9.5-9.5×4.4
=9.5×(4.5-4.4)
=0.95
33.3×14.8+66.6×5.5-99.9×8.6
原式=33.3×14.8+33.3×11-33.3×25.8
=33.3×(14.8+11-25.8)
=33.3×0
=0