Rounding 2-Digit Numbers to the Nearest Ten Worksheet

ABOUT THE WORKSHEET

Rounding to the nearest ten is a fundamental skill in second-grade mathematics. This printable worksheet provides twenty different two-digit numbers, challenging students to accurately round each value to its closest ten. Mastering this concept helps young learners develop strong number sense and serves as a vital stepping stone toward more complex estimation and mental math strategies later in their education. By working through these problems, students become more comfortable with the base-ten system and place value concepts.

QUICK DETAILS

• Grade Level: Grade 2
• Topic: Rounding to the Nearest Ten
• Question Count: 20 practice problems
• Format: High-quality PDF/Printable
• Answer Key: Available via the MathPro365 portal

STEP-BY-STEP SOLVED EXAMPLES

Rounding might seem tricky at first, but following a simple rule makes it easy: look at the ones digit. If it is 5 or greater, round up to the next ten. If it is less than 5, the tens digit stays the same and the ones digit becomes zero.

Example 1: Rounding 91

Look at the number in the ones place, which is 1. Since 1 is less than 5, we round down to the current ten. Therefore, 91 rounded to the nearest ten is 90.

Example 2: Rounding 35

Look at the ones digit. The number is 5. According to the standard rounding rule, when a number ends in 5, we always round up to the next ten. So, 35 rounded to the nearest ten is 40.

Example 3: Rounding 59

The ones digit in 59 is 9. Since 9 is greater than 5, we round up to the next ten. Consequently, 59 rounded to the nearest ten becomes 60.

TEACHER & PARENT TIPS

To help students visualize this concept, use a physical number line. Mark the tens (e.g., 20 and 30) and have the student place the number 28 on the line. They can see it is physically closer to 30 than 20. Another great tip is to use the "Rounding Mountain" analogy: numbers ending in 1-4 are on the uphill side and roll back down to the start, while numbers 5-9 reach the peak and roll forward to the next ten. Encourage students to circle the ones place in every problem before they start rounding to focus their attention on the correct digit.