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Author Question: What strategy for computational estimation after adding or subtracting do you adjust to correct for ... (Read 32 times)

xclash

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on: Feb 18, 2021

Question 1

There are important things to remember when teaching the standard algorithm. Identify the statement that does not belong.
◦ Good choice in some situations.
◦ Require written record first.
◦ Require concrete models first.
◦ Explicit connections are made between concept and procedure.

Question 2

What strategy for computational estimation after adding or subtracting do you adjust to correct for digits or numbers that were ignored?
◦ Front-end.
◦ Rounding.
◦ Compatible numbers.
◦ Over and under.
Elementary and Middle School Mathematics: Teaching Developmentally ¦ Van de Walle, Karp, Bay-Williams ¦ 10th Edition
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Marked as best answer by xclash on Feb 18, 2021

Andromeda18

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Reply #1 on: Feb 18, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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xclash

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Reply 2 on: Feb 18, 2021
Great answer, keep it coming :)

phuda

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Reply 3 on: Yesterday
Excellent

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