98家236+199加399用简便算法怎么算
答案:3 悬赏:30 手机版
解决时间 2021-11-23 20:29
- 提问者网友:niaiwoma
- 2021-11-23 11:11
98家236+199加399用简便算法怎么算
最佳答案
- 五星知识达人网友:琴狂剑也妄
- 2021-11-23 12:33
98+236+199+399
=98+230+2+1+1+2+199+399
=(98+2)+230+2+(199+1)+(399+1)
=100+230+2+200+400
=332+600
=932
谢谢,请采纳
=98+230+2+1+1+2+199+399
=(98+2)+230+2+(199+1)+(399+1)
=100+230+2+200+400
=332+600
=932
谢谢,请采纳
全部回答
- 1楼网友:雪起风沙痕
- 2021-11-23 14:53
126+(98+274)=(126+274)+98=400+98=498900-305=900-(300+5)=900-300-5=600-5=595924-(275+324)=924-275-324=(924-324)-275=600-275=325926-498=926-(500-2)=926-500+2=426+2=428837-399=837-(400-1)=837-400+1=437+1=438758-297=758-(300-3)=758-300+3=458+3=461643-599=643-(600-1)=643-600+1=43+1=44
- 2楼网友:野味小生
- 2021-11-23 13:20
98家236+199加399用简便算法怎么算
=100-2+236+200-1+400-1
=700+236-4
=932
=100-2+236+200-1+400-1
=700+236-4
=932
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