RANGER GAMEZ

Math practice · Numbers and place value · ages 7+

Free place value and rounding practice

Place value is what a digit is worth because of where it sits: the 4 in 4,312 is worth 4,000. Rounding uses place value to make a number simpler, like 4,312 to the nearest hundred is 4,300.

In the Number Barn world, Ranger's Math Trail asks both kinds of question, with numbers up to the ten thousands. Rounding answers come with a number line showing which way the number goes.

Practice place value and rounding now

Pick a level

Place value to hundredsLevel 1 · ages 7+Place value to ten thousandsLevel 2 · ages 9+Round to tensLevel 3 · ages 8+Round to hundredsLevel 4 · ages 9+Round to thousandsLevel 5 · ages 10+

Free, no sign-up. The game asks your age once, then every answer comes with a hint and a step-by-step Show me how.

How to do it

  1. Read the places from the right: ones, tens, hundreds, thousands, ten thousands.
  2. A digit's value is the digit times its place: the 7 in 3,782 is 7 × 100 = 700.
  3. To round, find the place you're rounding to, then look at the digit just to its right.
  4. 5 or more rounds up. 4 or less rounds down. Everything after the rounding place becomes 0.

Worked examples

Example 1What is the value of the digit 7 in 7482?

  1. Read the places from the right: ones, tens, hundreds, thousands...
  2. The 7 is in the thousands place.
  3. So it is worth 7 × 1000 = 7000.

Answer: 7000

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Example 2Round 1648 to the nearest hundred.

  1. 1648 is between 1600 and 1700.
  2. Look at the next digit to the right: it is 4.
  3. 4 or less rounds DOWN, so the answer is 1600.

Answer: 1600

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Mistakes to watch for

The game

NEW New: Ranger's Math TrailRanger's Math Trail gameplay

Ranger's Math Trail

Math: quick facts to algebra and geometry

Math from quick facts to algebra and geometry, with every step shown. It sets itself up for your age.

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Questions

Does 5 round up or down?

Up. When the digit to the right of the rounding place is 5, 6, 7, 8 or 9, round up.

What age is it for?

Place value starts around age 7 (grade 2) and rounding around age 8. The game opens them by age.

More math practice: Addition · Subtraction · Multiplication facts · Division and long division · Fractions · Decimals · Percents and ratios · Negative numbers · Order of operations · Exponents and square roots · Solving equations · Slope and linear equations · Systems of equations · Factoring quadratics · Area, perimeter and volume · Angles · Pythagorean theorem · Circles · Mean, median, mode and range · All math topics