Author Question: Decimal multiplication tends to be poorly understood. What is it that students need to be able to do? (Read 55 times)

ts19998 · **on:** Feb 18, 2021

Question 1

Approximation with compatible fractions is one method to help students with number sense with decimal fractions. All of the statements are true of 7.3962 EXCEPT:
◦ Closer to 7 than 8.
◦ Closer to 7

than 7

.
◦ Closer to 7.3 than 7

.
◦ Closer to 7.4 than 7.5.

Question 2

Decimal multiplication tends to be poorly understood. What is it that students need to be able to do?
◦ Discover the method by being given a series of multiplication problems with factors that have the same digits, but decimals in different places.
◦ Discover it on their own with models, drawings and strategies.
◦ Be shown how to estimate after they are shown the algorithm.
◦ Use the repeated addition strategy that works for whole number.

TheDev123 · **Reply #1 on:** Feb 18, 2021

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