Place Value & Number LinesATI TEAS 7 cheat sheet

Reading the size of a number

8 key facts 5 practice questions Reviewed Oct 2026

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Place Value

Left of the point: ones, tens, hundreds, thousands
Right of the point: tenths, hundredths, thousandths
The position sets the value of the digit

Comparing

Line up the decimal points and compare left to right
0.5 is greater than 0.45 — more tenths wins

Number Line

Further right is larger, including negatives
−2 is greater than −7

Expanded Form

347 = 300 + 40 + 7

Key takeaway

Reading the size of a number

Before you read

Test yourself first: 5 questions

Question 1 of 5

What is 0.4 × 0.2?

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