Round Decimals to the Nearest Whole Number

Have your child count the steps out loud from the last whole number before writing a decimal. For hundredths, point out that each big step (a tenth) holds ten small steps. On the rounding page, ask which whole number the dot is closer to and how many tenths away it is.

Place decimals on a number line and round to the nearest whole number. Closer to means a shorter distance away. On the number line, 3.2 is 2 tenths from 3 and 8 tenths from 4, so 3.2 is closer to 3. The directions on the page read: Draw a dot where the number belongs, or read the dot shown. Then, write the whole number it is closer to. The page opens with a worked example, and the answer key shows every answer.

Yes, both. We made it for 4th Grade decimals, and the page works the same whether it lands on a kitchen table or a center rotation. At home, most families go through it together and talk the answers out loud, and that talking is where most of the learning happens with decimal number lines and rounding. In class it runs well as independent work while you pull a small group. Print one copy or thirty, whichever the day needs.

Split the space between two whole numbers into 10 equal steps. Each step is one tenth, so the point 3 steps after 0 is 0.3. To show hundredths, zoom into one tenth and split it into 10 smaller steps.

A number line shows how big a decimal is and which numbers it sits between. It makes comparing and rounding visual: 3.2 is plainly closer to 3 than to 4.

Rounding decimals is a 5th grade standard (5.NBT.A.4), but finding the nearest whole number on a number line is a natural 4th grade extension. The rounding page uses only a number line and the idea of closer to, with no rules to memorize.

The number line pages support CCSS 4.NF.C.6 (decimal notation for tenths and hundredths, including locating decimals on a number line). The rounding page previews 5.NBT.A.4.

4th graders learn decimals as another way to write tenths and hundredths (CCSS 4.NF.C.6). They write fractions like 7/10 and 37/100 as 0.7 and 0.37, place decimals on number lines and grids, and compare two decimals to hundredths using >, < and = (4.NF.C.7). Money and metric lengths give the decimals everyday meaning.

Line up the decimal points and compare place by place from the left: ones, then tenths, then hundredths. Writing 0.5 as 0.50 makes it easy to see that 0.5 is greater than 0.47.

Yes, in a limited way. They add tenths and hundredths by writing tenths as hundredths (3/10 + 4/100 = 34/100), which is 4.NF.C.5. Adding and subtracting decimals with the standard method is a 5th grade skill.

Yes. Every one of the 30 new decimals sheets has an answer key, and the two page sheets have a two page key.