Estimate the values if the following and state the estimation strategies used.
1) 161.46 x 0.49
2) 305.73 x 0.33
3) 179.8 x 0.68
F.2 mahs easy
2007-11-09 12:48 am
回答 (5)
2007-11-09 1:05 am
✔ 最佳答案
1) 161.46 x 0.49 (rounding)= 160 x 0.5
= 80
2) 305.73 x 0.33 (rounding)
= 305 x 0.3
= 91.5
3) 179.8 x 0.68 (rounding)
= 200 x 0.7
= 140
參考: 自己
2007-11-09 3:18 am
1) 161.46 x 0.49
= 79.1154
2) 305.73 x 0.33
= 100.8909
3) 179.8 x 0.68
= 122.264
= 79.1154
2) 305.73 x 0.33
= 100.8909
3) 179.8 x 0.68
= 122.264
參考: MYSELF
2007-11-09 1:06 am
1)161.46 x 0.49
161.46 x 0.49 ~ 160 x 0.5
160 x 0.5 = 80
161.46 x 0.49 ~ 80
2) 305.73 x 0.33
305.73 x 0.33 ~ 300 x 0.3+ 6 x 0.3
300 x 0.3+ 6 x 0.3 = 91.8
305.73 x 0.33 ~ 91.8
3) 179.8 x 0.68
179.8 x 0.68 ~ 180 x 0.7
180 x 0.7 = 126
179.8 x 0.68 ~ 126
161.46 x 0.49 ~ 160 x 0.5
160 x 0.5 = 80
161.46 x 0.49 ~ 80
2) 305.73 x 0.33
305.73 x 0.33 ~ 300 x 0.3+ 6 x 0.3
300 x 0.3+ 6 x 0.3 = 91.8
305.73 x 0.33 ~ 91.8
3) 179.8 x 0.68
179.8 x 0.68 ~ 180 x 0.7
180 x 0.7 = 126
179.8 x 0.68 ~ 126
參考: MYSELF
2007-11-09 12:57 am
1) 161.46 x 0.49
= 79.1154
2) 305.73 x 0.33
= 100.8909
3) 179.8 x 0.68
= 122.264
= 79.1154
2) 305.73 x 0.33
= 100.8909
3) 179.8 x 0.68
= 122.264
2007-11-09 12:56 am
1)79.1154
2)100.8909
3)122.264
2)100.8909
3)122.264
收錄日期: 2021-04-13 21:24:23
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071108000051KK01909