Grade 4 Maths: Number Sense

Place Value and Number Forms

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Place Value and Number Forms

The user's request asks for a 60-day workbook with Excel export, but this system produces a single lesson slide deck. To stay faithful to the maths curriculum request, this deck covers one coherent Grade 4 maths lesson on place value and number forms.

Learning goal

I can read, write, compare, and represent whole numbers using place value.

Deze slide heeft geen instructies

One thing you know about place value or big numbers

Use the responses to surface prior knowledge such as ones, tens, hundreds, thousands, digit value, writing numbers in words, or comparing numbers.

What place value means

  • A digit's value depends on its place in the number.

  • In 4,582, the 4 means 4 thousands.

  • The 5 means 5 hundreds.

  • The 8 means 8 tens.

  • The 2 means 2 ones.

Stress that the same digit can have different values in different places. For example, 5 in 5,000 is not the same as 5 in 50.

Standard form

Standard form is the usual way we write a number.


Example 1: four thousand, three hundred and twenty-one = 4,321


Example 2: seven thousand and six = 7,006

Point out the zero in 7,006. It shows there are no hundreds and no tens, but the place values still matter.

Expanded form

Expanded form shows the value of each digit.


  • 4,582 = 4,000 + 500 + 80 + 2

  • 6,104 = 6,000 + 100 + 4

  • A zero place does not add a value.

Students often try to write 6,104 as 6,000 + 100 + 0 + 4. Explain that this is not wrong mathematically, but we usually leave out the zero term.

Word form

  • Word form writes the number in words.

  • 3,245 = three thousand, two hundred and forty-five

  • 8,019 = eight thousand and nineteen

Use UK wording with 'and' in number names. Model careful reading of zeros inside numbers, especially in 8,019.

Comparing numbers

Compare digits from left to right.


  • 5,432 > 5,234 because 4 hundreds is more than 2 hundreds.

  • 6,099 < 6,901 because 0 hundreds is less than 9 hundreds.

  • Use >, <, and = to compare.

Students may focus on the last digits first. Remind them to start with the greatest place value.

In 7,006, what does the 7 represent?

A

7 thousands

B

7 hundreds

C

7 tens

D

7 ones

Checks the core idea that a digit's value depends on its position, not just the digit itself.

Complete the place value summary

The number 4,582 has 4 thousands, 5 hundreds, 8 tens, and 2 ones. In expanded form, it is 4,000 + 500 + 80 + 2. To compare numbers, start from the left and check the greatest place value first.

4,582
4 thousands
4,000 + 500 + 80 + 2
left
4,852
4 hundreds
4,000 + 50 + 80 + 2
right

All blanks echo exact ideas taught across the lesson: place value, expanded form, and left-to-right comparison.

How would you explain why 6,099 is less than 6,901?

Expected elements: students should mention starting at the greatest place value on the left, then moving right only if the digits are equal. They may refer to thousands before hundreds in 6,099 and 6,901, then explain that 0 hundreds is less than 9 hundreds.

What is one idea from today that you understand better now?

Reflection prompt. Invite students to name one idea such as standard form, expanded form, word form, or comparing from left to right.

Which part of this lesson felt hardest for you?

Reflection prompt. Encourage students to mention a specific difficulty, such as zeros in numbers, expanded form, or comparing numbers with the same thousands digit.

Glossary

digit - one symbol used to write numbers, such as 0 to 9

place value - the value of a digit based on its position in a number

ones - the place for single units

tens - the place worth ten ones

hundreds - the place worth ten tens

thousands - the place worth ten hundreds

expanded form - a way to write a number as the sum of each digit's value

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