estimate each of the following expressions by using compatible numbers
0.3359×5.8912×5.01
estimate each of the following expressions by using clustering
113+115+107+106
estimate each of the following expressions by using a suitable translation strategy
593×8.2÷78
estimate each of the following expressions by using compensation strategy
4121×5.01
use a suitable strategy to estimate each of the following expressions
2852+2693+2785+2819
pls告訴我using 什麽的時候要怎麼計（過程）&answer
ths
拜託
MATHS （好像是關於小數）
2015-07-08 8:49 pm
回答 (3)
2015-07-08 9:17 pm
✔ 最佳答案
using compatible numbers0.3359×5.8912×5.01
~ 0.33x6x5
= 9.9
using clustering
113+115+107+106
~ 4x110
= 440
using a suitable translation strategy
593×8.2÷78
~ 590x(7.8 + 0.39)÷78
= 59 + 2.95
= 61.95
using compensation strategy
4121×5.01
~ 4130x5
= 20650
use a suitable strategy (clustering)
2852+2693+2785+2819
~ 2800+2800+2800+2800
= 11200
2015-07-08 9:04 pm
@知足常樂
那也只是解答了一道題而已，那麼其他呢。。
那也只是解答了一道題而已，那麼其他呢。。
2015-07-08 8:56 pm
收錄日期: 2021-04-16 17:02:14
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150708000051KK00016