5th grade · Math · Unit 1 of 12
Numbers to a Million
Read, write and compare big numbers
What your child practices
Place value to 1,000,000: digit values, standard and expanded form, number words, rounding, ordering, and using benchmarks like 500,000 on a number line.
Minnesota K-12 Academic Standards benchmark: 5.3.5.7 · place value in multi-digit numbers
How we explain it
Children can open this short lesson before they practice.
- Each place is worth 10 times the place to its right.
- Read big numbers in groups of three digits: thousands, then ones.
- To compare, start at the left-most place and look for the first difference.
Example: Write four hundred twelve thousand, three hundred five in digits. Thousands group: 412. Ones group: 305. Put them together: 412,305. Answer: 412,305
Numbers to a Million in Minnesota
In the Minnesota K-12 Academic Standards, this is unit 1 of 12 in 5th grade Math, before Multiply.
Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
Put these numbers in order from least to greatest.
- 849,246
- 842,946
- 482,946
- 824,946
482,946 → 824,946 → 842,946 → 849,246
Hint: Compare the greatest place first. If those digits match, move one place to the right, and keep going until the digits are different.
Question 2
What number is 10,000 more than 490,453?
answer box
500453
Hint: Only the ten thousands digit should change by 1. If that digit is 9, regroup with the place to its left.
Question 3
Write this number using digits: four hundred eighty thousand seven hundred six.
answer box
480706
Hint: Split the number at the word “thousand”. Write the thousands part, then the last three digits. Use a 0 to hold any empty place.
Question 4
Round 332,743 to the nearest ten thousand.
- 330,000
- 340,000
- 300,000
- 333,000
330,000
Hint: Look at the digit just to the right of the ten thousands place. If it is 5 or more, round up; if it is less than 5, round down. Then every place to the right becomes 0.
Question 5
In 404 204, what is the value of the digit 2?
- 2
- 200
- 20
- 2000
200
Hint: Name the place of the 2, counting from the right: ones, tens, hundreds, thousands, ten thousands, hundred thousands. The digit is worth 2 of that place.
Question 6
What number is 400,000 + 80,000 + 800 + 6?
answer box
480806
Hint: Each part fills one place value. Write the digits from the greatest place to the ones, and put a 0 in any place that is missing.