690十47X52一398脱式计算 98一18X5十170 15X7十85X2 720÷36÷2
答案:3 悬赏:60 手机版
解决时间 2021-01-14 23:52
- 提问者网友：戎马万世
- 2021-01-14 19:33
690十47X52一398脱式计算 98一18X5十170 15X7十85X2 720÷36÷2
最佳答案
- 五星知识达人网友：由着我着迷
- 2021-01-14 20:40
690十47X52一398脱式计算
=690+2444-398
=3134-398
=2736
98一18X5十170
=98-90+170
=8+170
=178
15X7十85X2
=105+170
=275
720÷36÷2
=20÷2
=10
=690+2444-398
=3134-398
=2736
98一18X5十170
=98-90+170
=8+170
=178
15X7十85X2
=105+170
=275
720÷36÷2
=20÷2
=10
全部回答
- 1楼网友：西岸风
- 2021-01-14 22:27
解: 690十47X52一398
=690+47(50+2)-398
=690+2350+94-398
=3040+94-398
=3040-304
=2736
98一18X5十170
=98-90+170
=8+170
=178
15X7十85X2
=105+170
=275
720÷36÷2
=20÷2
=10
=690+47(50+2)-398
=690+2350+94-398
=3040+94-398
=3040-304
=2736
98一18X5十170
=98-90+170
=8+170
=178
15X7十85X2
=105+170
=275
720÷36÷2
=20÷2
=10
- 2楼网友：妄饮晩冬酒
- 2021-01-14 21:40
690十47X52一398
=690+2444-398
=690+2046
=2736
98一18X5十170
=98-90+170
=8+170
=178
15X7十85X2
=105+170
=275
720÷36÷2
=720÷（36x2）
=720÷72
=10追答发过去了，望采纳
=690+2444-398
=690+2046
=2736
98一18X5十170
=98-90+170
=8+170
=178
15X7十85X2
=105+170
=275
720÷36÷2
=720÷（36x2）
=720÷72
=10追答发过去了，望采纳
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