How to Write a Number Using Decimal Expansion | 5.NBT.A.3 💛💙
In this short math video we will answer a standardized math test question where we demonstrate how to write a number using decimal expansion. We will first understand that the question is a multiple select problem and that we need to identify two equivalent expressions. We will review place value of a decimal using ones, tenths, hundredths and thousandths. We will review how to read a decimal using words. We will rewrite using decimal expansion. We will use the ones digit value times 1, the hundredths digit times 1/100, and the thousandths digit times 1/1000. An exemplar solution is modeled and explained.
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#placevalue
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00:00 Introduction
00:09 The Question
00:28 Understanding the Problem
00:50 Reviewing the Answer Selections
01:08 How to Read/Say the Decimal
01:18 Place Value
01:58 Writing in Decimal Expansion
02:49 Second Way to Write Decimal Expansion
03:20 Consider the 5 Answer Choices
04:29 The Solution
Common Core Math Standard
5.NBT.A.3 Read, write, and compare decimals to thousandths.
5.NBT.A.3.A Read and write decimals to thousandths using base-ten numerals, number names, and expanded form, e.g., 347.392 = 3 × 100 + 4 × 10 + 7 × 1 + 3 × (1/10) + 9 × (1/100) + 2 × (1/1000).