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標題:
發問:
1.Estimate 203.5+192.1+206.7+193.4 by finding a clustered value under reformulation. 2.Estimate 4269X7 by applying compensation. 3.Estimate 7.7X(896.7/7) by applying translation. 4.Estimate 12+36+48+22+56 by rounding up each value to the nearest ten. 如果可以的話,請大家幫我解題,列式及答案.
最佳解答:
203.5+192.1+206.7+193.4 204+192+207+193 ~796 _____________ 4269X7 ~610 _______________ 7.7X(896.7/7) 0.7x896.7 ~628 _______________ 12+36+48+22+56 10+40+50+20+60 ~180 _______________
其他解答:
你好似打多左個9,應該係29883
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F.2 to F.3數學問題(請用英文回答)發問:
1.Estimate 203.5+192.1+206.7+193.4 by finding a clustered value under reformulation. 2.Estimate 4269X7 by applying compensation. 3.Estimate 7.7X(896.7/7) by applying translation. 4.Estimate 12+36+48+22+56 by rounding up each value to the nearest ten. 如果可以的話,請大家幫我解題,列式及答案.
最佳解答:
203.5+192.1+206.7+193.4 204+192+207+193 ~796 _____________ 4269X7 ~610 _______________ 7.7X(896.7/7) 0.7x896.7 ~628 _______________ 12+36+48+22+56 10+40+50+20+60 ~180 _______________
其他解答:
你好似打多左個9,應該係29883
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