A free rounding anchor chart: find the place, look at the digit to its right, and the rule for rounding up or down, with tens and hundreds examples. For grades 3–5. Print it on one page, or on four pages to tape together as a poster.
Rounding
Rounding gives a close number that is easier to use
Find the place you are rounding to.
Look at the digit to its right.
The rule
0, 1, 2, 3 or 4: the digit stays the same. Round down.
5, 6, 7, 8 or 9: the digit goes up by one. Round up.
Every digit to the right becomes zero.
Round to the nearest ten
24 is closer to 20. It rounds to 20.
27 is closer to 30. It rounds to 30.
25 is in the middle. It rounds up to 30.
Round 3,482 to the nearest hundred
Look at the tens digit: 8. Round up.
3,482 rounds to 3,500.
Free at teach.peabody.kids
Rounding
Rounding gives a close number that is easier to use
Find the place you are rounding to.
Look at the digit to its right.
The rule
0, 1, 2, 3 or 4: the digit stays the same. Round down.
5, 6, 7, 8 or 9: the digit goes up by one. Round up.
Every digit to the right becomes zero.
Round to the nearest ten
24 is closer to 20. It rounds to 20.
27 is closer to 30. It rounds to 30.
25 is in the middle. It rounds up to 30.
Round 3,482 to the nearest hundred
Look at the tens digit: 8. Round up.
3,482 rounds to 3,500.
Free at teach.peabody.kids
Rounding
Rounding gives a close number that is easier to use
Find the place you are rounding to.
Look at the digit to its right.
The rule
0, 1, 2, 3 or 4: the digit stays the same. Round down.
5, 6, 7, 8 or 9: the digit goes up by one. Round up.
Every digit to the right becomes zero.
Round to the nearest ten
24 is closer to 20. It rounds to 20.
27 is closer to 30. It rounds to 30.
25 is in the middle. It rounds up to 30.
Round 3,482 to the nearest hundred
Look at the tens digit: 8. Round up.
3,482 rounds to 3,500.
Free at teach.peabody.kids
A1Rounding anchor chart · page 1 of 4 · A2 to the right · B1 below
A2 joins this side
10 cm at 100% · between the corner marks 7.5 × 10 in
Rounding
Rounding gives a close number that is easier to use
Find the place you are rounding to.
Look at the digit to its right.
The rule
0, 1, 2, 3 or 4: the digit stays the same. Round down.
5, 6, 7, 8 or 9: the digit goes up by one. Round up.
Every digit to the right becomes zero.
Round to the nearest ten
24 is closer to 20. It rounds to 20.
27 is closer to 30. It rounds to 30.
25 is in the middle. It rounds up to 30.
Round 3,482 to the nearest hundred
Look at the tens digit: 8. Round up.
3,482 rounds to 3,500.
Free at teach.peabody.kids
A2Rounding anchor chart · page 2 of 4 · B2 below · trim the left and top at the marks and lay it over the one before
A1 joins this side
10 cm at 100% · between the corner marks 7.5 × 10 in
Rounding
Rounding gives a close number that is easier to use
Find the place you are rounding to.
Look at the digit to its right.
The rule
0, 1, 2, 3 or 4: the digit stays the same. Round down.
5, 6, 7, 8 or 9: the digit goes up by one. Round up.
Every digit to the right becomes zero.
Round to the nearest ten
24 is closer to 20. It rounds to 20.
27 is closer to 30. It rounds to 30.
25 is in the middle. It rounds up to 30.
Round 3,482 to the nearest hundred
Look at the tens digit: 8. Round up.
3,482 rounds to 3,500.
Free at teach.peabody.kids
B1Rounding anchor chart · page 3 of 4 · B2 to the right · trim the left and top at the marks and lay it over the one before
B2 joins this side
10 cm at 100% · between the corner marks 7.5 × 10 in
Rounding
Rounding gives a close number that is easier to use
Find the place you are rounding to.
Look at the digit to its right.
The rule
0, 1, 2, 3 or 4: the digit stays the same. Round down.
5, 6, 7, 8 or 9: the digit goes up by one. Round up.
Every digit to the right becomes zero.
Round to the nearest ten
24 is closer to 20. It rounds to 20.
27 is closer to 30. It rounds to 30.
25 is in the middle. It rounds up to 30.
Round 3,482 to the nearest hundred
Look at the tens digit: 8. Round up.
3,482 rounds to 3,500.
Free at teach.peabody.kids
B2Rounding anchor chart · page 4 of 4 · trim the left and top at the marks and lay it over the one before
B1 joins this side
10 cm at 100% · between the corner marks 7.5 × 10 in
How to use it
One page: print it for a notebook or a table, or project it while you teach.
A poster: print the four pages at 100% (the 10 cm bar on each page checks it). Each page after A1 says where it goes: trim its left and top edges at the marks, lay it over the page before at the ticks, and tape the back. It makes a poster about 15 by 20 inches.
Make it yours: build the chart with the class first and keep this one as your model, or add the class's own examples on sticky notes.