Learning objectives
- Identify the value of a digit in the tenths, hundredths or thousandths place.
- Write decimals to the thousandths in expanded form.
- Compare and order decimals with different numbers of decimal places.
- Write a decimal in word form.
Students find the value of digits to the thousandths, write decimals in expanded form, compare and order decimals, and read a rainfall table.
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A worked example puts 2.068 in a chart from ones to thousandths and shows why the zero in the tenths place matters. Across 24 questions, students name the value of bold digits, write expanded form for numbers such as 0.904 that have zero places, compare pairs like 0.5 and 0.50, and order two sets of decimals. A four-day rainfall table asks for Monday's 0.45 in words, and a riddle builds a number from 3 ones, 9 tenths, 0 hundredths and 2 thousandths. The answer key adds a tip for comparing.
Watch the comparison of 0.09 and 0.1: students who look only at the digits pick 0.09 because 9 is more than 1. Have them write 0.1 as 0.10 and compare 9 hundredths with 10 hundredths.
In Part B, students often write a term for a zero place, such as 0.9 + 0.00 + 0.004 for 0.904. Point back to 2.068 in the example, where the zero tenths place has no term.
Ways to adjust the 24 items for different students.
Each one is checked against the official document. Where the resource covers only part of a standard, the note says so.
Students write decimals to thousandths in expanded and word form, compare pairs with <, > and =, order sets from least to greatest, and read a rainfall table.
Students write the value of an underlined digit in numbers with up to 3 decimal places. Multiplying and dividing by 10, 100 and 1,000 is not covered.
Every number has at most two digits before the decimal point and at most three after it, from 0.043 to 31.25.
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