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### Overview

This activity is a sorting game where students have to match multi-digit numbers to the appropriately rounded number.  Students must be able to round multi-digit numbers to the nearest ten, hundred, or thousand.  There is a recording sheet to track student progress.

### MA19.4.9

Round multi-digit whole numbers to any place using place value understanding.

## UP:MA19.4.9

### Vocabulary

• Round
• Place value
• Ones
• Tens
• Hundreds
• Thousands
• Ten thousands
• Approximately
• Halfway point

### Knowledge

Students know:

• The relationship among positions of digits in a number and place value. They can use that knowledge to round numbers to nay place.

### Skills

Students are able to:

• Use place value strategies to round multi-digit whole numbers to any place.

### Understanding

Students understand that:

• rounding multi-digit numbers is an estimation strategy used when writing the original number as the closest multiple of a power of 10.

### Phase

After/Explain/Elaborate
Learning Objectives

### Learning Objectives

Students will be able to round multi-digit numbers to the nearest ten, hundred, or thousand.

### Activity Details

The students can play the sorting game individually, with a partner, or in small groups.

The students must match the numbers on the fish to the appropriately rounded numbers on the sharks. They should round the 2-digit numbers to the nearest ten, the 3-digit numbers to the nearest hundred, and the 4-digit to the nearest thousand.  Students can be provided with blank number lines as support if needed.

After students have "fed" the sharks by matching them with fish, they should record their answers on the recording sheet.

Assessment Strategies

### Assessment Strategies

Check student work on the recording sheet to check for accuracy when rounding o the nearest ten, hundred, or thousand.

### Acceleration

You can use only the 2-, 3-, or 4-digit shark/fish to make the game easier or more challenging as needed.

### Intervention

Students can be provided with blank number lines as support if needed.

### Variation Tips

You can use only the 2-, 3-, or 4-digit shark/fish to make the game easier or more challenging as needed.

### Total Duration

0 to 15 Minutes

### Background / Preparation

• Print and cut apart the sharks and fish for the sorting game
• Print and make copies of the recording sheet for each student

Students should have experience in rounding 2-digit, 3-digit, and 4-digit numbers to the nearest ten, hundred, and thousand.

### Materials and Resources

• Printed copies of the sorting game and recording sheet for each student