🔢 Numbers up to 9999
Class 4 Maths · Unit 1 of 12 · about 120 minutes
Extends place value from hundreds to thousands. Children build, read, write, expand, compare, order and round four-digit numbers, and use estimation in everyday contexts. This unit is the foundation for all Grade 4 arithmetic; every later unit assumes fluent reading and comparing of numbers to 9999.
What your child will learn
- Students will be able to show a four-digit number as thousands, hundreds, tens and ones using objects, pictures or an abacus.
- Students will be able to read and write four-digit numerals and number names, including numbers with zero in the tens, hundreds or ones place.
- Students will be able to write a four-digit number in expanded form and state the place value of any digit.
- Students will be able to compare two four-digit numbers using place value and the symbols >, < and =.
- Students will be able to arrange up to five four-digit numbers in ascending or descending order.
- Students will be able to round a four-digit number to the nearest ten and to the nearest hundred, and use rounding to estimate.
Lessons in this unit
- Making a thousand: Ten hundreds make one thousand. Children bundle ten hundred-blocks into one thousand-cube, count 100, 200 ... 1000, and see 1000 written.
- Thousands, hundreds, tens and ones: Build and name four-digit numbers from thousand-cubes, hundred-blocks, ten-rods and unit cubes, and record them in a place value chart (Th H T O).
- Expanded form and place value: Split a four-digit number into thousands + hundreds + tens + ones (4823 = 4000 + 800 + 20 + 3) and tell the value of each digit.
- Comparing numbers: Compare two four-digit numbers by looking at thousands first, then hundreds, then tens, then ones, and write >, < or =.
- Ordering numbers: Arrange three to five numbers in ascending or descending order by comparing thousands, hundreds, tens and ones, and read simple number lines.
- Rounding and estimation: Round four-digit numbers to the nearest ten and to the nearest hundred using a number line, and use rounding to estimate quantities in real-life contexts.
Key words
- thousand
- 10 hundreds put together. We write it as 1000.
- place value
- What a digit is worth because of where it sits: thousands, hundreds, tens or ones.
- digit
- One of the symbols 0 to 9 that we use to write numbers.
- expanded form
- A number split into its parts, like 3456 = 3000 + 400 + 50 + 6.
- greater than / less than
- Bigger than (>) or smaller than (<).
- ascending order
- From smallest to biggest, like climbing stairs.
- descending order
- From biggest to smallest, like coming down stairs.
- round off
- Say the nearest easy number, like calling 48 'about 50'.
- estimate
- A careful guess, close to the real answer.
Help your child at home
What to watch for
- 1000 is 'one and zero and zero and zero', four separate things rather than one thousand.
- Help: Bundle ten hundreds and count the bundle as 'one thousand'. Say '1 thousand, 0 hundreds, 0 tens, 0 ones'.
- Zero in the middle can be dropped: 3067 is written as 367.
- Help: Use the Th H T O chart; every column needs a digit. 0 hundreds still needs a 0.
- The place value of a digit is the digit itself: in 4823 the 8 is worth 8.
- Help: Point to the 8 hundred-blocks. Count them: 100, 200 ... 800. The 8 stands for 800.
- The number with the bigger ones digit is bigger: 1293 > 2310 because 3 > 0.
- Help: Always start at the thousands. 1 thousand is less than 2 thousands, so 1293 < 2310.
Try this at home
- Bundle 10 hundred-blocks into a thousand-cube and record 1000
- Blocks to number: 2 thousand-cubes, 4 hundred-blocks, 7 ten-rods, 3 cubes → 2473
- Number → expanded form with blocks alongside
- Different thousands: 3984 vs 4120
Quick questions to ask aloud
- How many hundreds make one thousand? (10 / 100 / 1)
Show answer
Count the hundred-blocks: 100, 200, 300 ... 1000. Ten hundreds make one thousand. - Arjun has 3 thousand-cubes, 5 hundred-blocks, 2 ten-rods and 4 cubes. What number has he made?
Show answer
3 thousands, 5 hundreds, 2 tens and 4 ones. In the Th H T O chart that is 3 5 2 4, so the number is 3524. - Which is the expanded form of 4823? (4000 + 800 + 20 + 3 / 4 + 8 + 2 + 3 / 4000 + 80 + 2 + 3 / 4800 + 23)
Show answer
4823 has 4 thousands (4000), 8 hundreds (800), 2 tens (20) and 3 ones (3). So 4823 = 4000 + 800 + 20 + 3.
Frequently asked questions
What will my child learn in "Numbers up to 9999" (Class 4 Maths)?
Your child will be able to: show a four-digit number as thousands, hundreds, tens and ones using objects, pictures or an abacus.; read and write four-digit numerals and number names, including numbers with zero in the tens, hundreds or ones place.; write a four-digit number in expanded form and state the place value of any digit.; compare two four-digit numbers using place value and the symbols >, < and =.; arrange up to five four-digit numbers in ascending or descending order.; round a four-digit number to the nearest ten and to the nearest hundred, and use rounding to estimate..
How does MangoMindz teach "Numbers up to 9999"?
In 6 short parts (Making a thousand, Thousands, hundreds, tens and ones, Expanded form and place value, Comparing numbers, Ordering numbers, Rounding and estimation). Each part has a picture-based lesson read aloud by Mango Teacher, a quick check, and a quiz built from common mistakes children make, with Mango, a study buddy, for questions.
How long does "Numbers up to 9999" take?
About 120 minutes in total, spread over 6 parts of 15–25 minutes each.
How can I help my child with "Numbers up to 9999" at home?
Work through a small example together, such as: Bundle 10 hundred-blocks into a thousand-cube and record 1000; Blocks to number: 2 thousand-cubes, 4 hundred-blocks, 7 ten-rods, 3 cubes → 2473. Then ask a quick question aloud: How many hundreds make one thousand? (10 / 100 / 1)
What mistakes do children often make in "Numbers up to 9999"?
1000 is 'one and zero and zero and zero', four separate things rather than one thousand. Fix: Bundle ten hundreds and count the bundle as 'one thousand'. Say '1 thousand, 0 hundreds, 0 tens, 0 ones'. Zero in the middle can be dropped: 3067 is written as 367. Fix: Use the Th H T O chart; every column needs a digit. 0 hundreds still needs a 0. The place value of a digit is the digit itself: in 4823 the 8 is worth 8. Fix: Point to the 8 hundred-blocks. Count them: 100, 200 ... 800. The 8 stands for 800.
Is "Numbers up to 9999" free on MangoMindz?
Yes. Every lesson part and quiz in "Numbers up to 9999" is free on MangoMindz, with no ads.