Question

几道数学巧算题（四年级）

46×222＋18×666
37×333＋21×999
30×444＋35×888

急啊！！还有这些我就做完作业了。
希望大家给个回答，要有过程哦。
谢谢大家！！！

Answer 1

1.46*222+18*(222+222+222)=46*222+18*222+18*222+18*222
=(46+18+18+18)*222
=100*222
=22200
2.37*333+21*(333+333+333)
=(37+21+21+21)*333
=100*333
=33300
3.30*444+35*888
=30*444+35*(444+444)
=(30+35+35)*444
=100*444
=44400
应该就是这样！

Answer 2

=46*222+18*3*222
=222(46+54)
=22200

=37*333+21*3*333
=333*(37+21*3)
=33300

=30*444+35*2*444
=444*(30+35*2)
=44400

Answer 3

46×222＋18×666
=46×222+18×222×3
=46×222+54×222
=(46+54)×222
=100×222
=22200

37×333＋21×999
=37×333+21×3×333
=37×333+63×333
=(37+63)×333
=100×333
33300

30×444＋35×888
=30×444+35×444×2
=30×444+70×444
=(30+70)×444
=44400

Answer 4

46×222＋18×666 =46×222＋18×222×3=222×100=22200

37×333＋21×999=37×333＋21×333×3=333×100=33300

30×444＋35×888=30×444＋35×444×2=444×100=44400