# 3rd Grade - Round To Nearest 10, 100, Or 1000

 Grade Level: 3rd Skill: Numbers Topic: Round to Nearest 10, 100, or 1000 Goal: Round off numbers to 10,000 to the nearest ten, hundred, and thousand Skill Description: Number Sense: Rounding to nearest 10,000 The ability to round off numbers to 10,000 to the nearest ten, hundred, and thousand. (To “round off” means to state the value of a number to the nearest ten, hundred, thousand, etc.)

## Building Blocks/Prerequisites

### Sample Problems

 (1) What does rounding mean? (about how many/estimate) Why do we round off numbers? (estimating can help us solve problems quickly) And how do we do it? (see below) (2) What is the rule for rounding? (Look at the number to the right of the place value that you want to round to. If that number is 1-4 round down; 5-9 round up, meaning add one to the digit to the left) (3) When would rounding be used in daily life? (shopping—making sure there is enough money to buy the item) (4) When is rounding NOT a good method to use? (when an exact figure is needed) (5) Round 9,888 to the nearest thousand. (10,000)

### Online Resources

 (1) (2) (3) (4)

### Extra Help Problems

 (1) Round 45 to the nearest ten: 50 (2) Round 4,589 to the nearest hundred: 4,600 (3) Round 2,343 to the nearest thousand: 2,000 (4) Round 20 + 14 to the nearest ten: 30 (5) Which of the following numbers does not round to 2,000 when rounding to the nearest thousand? (2,346, 2098, 1,999, 2,567) (6) Round to the nearest thousand: 98,725 (99,000) (7) Round 5,676 to the nearest thousand. (6,000) (8) Round 909 to the nearest hundred. (900) (9) Round 35+17 to the nearest ten. (50) (10) Round 895 + 500 to the nearest thousand. (1,000) (11) Round 675 + 435 to the nearest hundred. (1,100) (12) Round 10,001 to the nearest ten thousand. (10,000) (13) Round 450 to the nearest ten. (450) (14) Round 450 to the nearest hundred. (500) (15) Round 1,155 to the nearest ten. (1,160) (16) Round 1,155 to the nearest hundred (1,200) (17) Round 1,155 to the nearest thousand. (1,000) (18) Which of the following numbers does not round to 550 when rounding to the nearest ten: 551, 555, 552, 554? (555) (19) Round to the nearest thousand: 8,095. (8,000) (20) Which of the following numbers does not round to 1,000: 985, 999, 972, 954, 949. (949) (21) Your number is 842. Round off to the nearest: 100: 800 10: 840 (22) Your number is 846. Round off to the nearest: 100: 800 10: 850 (23) Your number is 876. Round off to the nearest: 100: 900 10: 880 (24) Your number is 8461. Round off to the nearest: Thousands: 8,000 Hundreds: 8,500 Tens: 8,460 (25) Your number is 8688. Round off to the nearest: Thousands: 9,000 Hundreds: 8,700 Tens: 8,690