Decimals
Tenths, hundredths, and thousandths: reading, comparing, rounding, and decimal math.
Strategies
Strategy · 4th grade, 5th gradeHow do decimal grids (hundredths grids) work?
A decimal grid is a 10-by-10 square that stands for 1 whole. Each column is one tenth (0.1) and each small square is one hundredth (0.01). Kids shade squares…
Strategy · 4th grade, 5th gradeWhy does the decimal point "move" when you multiply by 10?
When you multiply by 10, every digit moves one place to the left on a place value chart, because each place is worth 10 times the place to its right. Dividin…
Strategy · 3rd grade, 4th grade, 5th gradeHow do kids round decimals with a number line?
To round on a number line, kids write the two "neighbor" numbers the number sits between, mark the halfway point, and see which neighbor it is closer to. 3.4…
Worksheets
Worksheet · 5th gradeDecimal grids: add, subtract, and multiply
Shade hundredths grids to add, subtract, and multiply decimals, then estimate and solve five more problems.
Worksheet · 5th gradePowers of 10 and place value
Multiply and divide by 10, 100, and 1,000, use exponents, write decimals in expanded form, and compare decimals.
Worksheet · 5th gradeRounding decimals on a number line
Eight rounding problems with a number line for each, to the nearest whole number, tenth, and hundredth.