The whole grid is 1. A full column is one tenth (0.1); one square is a hundredth (0.01). Count the columns, then the extra squares: 3 columns and 7 squares is 0.37.
tenthone of ten equal parts of a whole: 0.1
hundredthone of a hundred equal parts: 0.01
decimala number with a point, like 0.37
comparedecide which is greater
Watch for: Reading 0.4 as less than 0.37 because 4 is less than 37. Counting columns as hundredths. Writing 0.7 for 7 squares instead of 0.07.
At home: Shade a 10 × 10 grid for prices: 37 cents is 0.37 of a dollar.
Sample sheet and answer key
Luna's Space Adventure
Grade 4 · Decimals on grids · 4.2F
NameDate
Astronaut Luna is exploring a far-off corner of space. Solve each problem to help Luna's mission go smoothly!
Name the decimal
The whole grid is 1. A column is a tenth; a square is a hundredth.
Shade it
Shade whole columns for the tenths, then squares for the hundredths.
Shade0.61
Shade0.93
Shade0.22
Which is more?
In each row, circle the decimal with more of its grid shaded.
Grade 4 · Sheet
Luna's Space Adventure
Grade 4 · Decimals on grids · 4.2F
Answer key
Astronaut Luna is exploring a far-off corner of space. Solve each problem to help Luna's mission go smoothly!
Name the decimal
The whole grid is 1. A column is a tenth; a square is a hundredth.
0.74
0.57
0.7
Shade it
Shade whole columns for the tenths, then squares for the hundredths.
Shade0.61
Shade0.93
Shade0.22
Which is more?
In each row, circle the decimal with more of its grid shaded.
Answer key
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