## Number Sense Review

Digit and value have different meanings.

Which

You try:

Which

What is the

If you see a question that asks “write the name of the place value of the underlined digit,” it is not asking for the digit or the value, but the column name in the place value chart.

Never write large numbers

Always start the commas from the right side of the number.

You try. Fix the following numbers:

71930267

How many thousand blocks = 10,000? (Answer with a complete sentence)

Practice drawing good cubes to show 1,000 blocks. Always draw base 10 blocks that are equal in value, the same size. For example, make your ten-blocks the same height.

Write this number in

Write a 5-digit number:

What is a

What is a

When would you need to write out numbers with words?

Example:

Add a hypen only when you combine the tens and ones place values. Examples: twenty-five, sixty-four.

Know how to spell these math words:

twenty

eighty

thirty

ninety

forty (no ‘u’)

hundred

fifty

thousand

sixty

million

seventy

Which

**digit**is in the thousands place value?__4__What is the**value**of 4?__4,000__You try:

Which

**digit**is in the ten thousands place value?What is the

**value**of the number in the ten thousands?If you see a question that asks “write the name of the place value of the underlined digit,” it is not asking for the digit or the value, but the column name in the place value chart.

Never write large numbers

**without**either commas or spaces separating the numbers in groups of 3.Always start the commas from the right side of the number.

You try. Fix the following numbers:

71930267

__4,8990,0____998 43 2__How many thousand blocks = 10,000? (Answer with a complete sentence)

Practice drawing good cubes to show 1,000 blocks. Always draw base 10 blocks that are equal in value, the same size. For example, make your ten-blocks the same height.

**Numerals**are digits or numbers.Write this number in

**expanded form**using numerals and words: 41,821- numerals:
- words:

**standard form**: 7,000 + 60 + 4Write a 5-digit number:

What is a

**sum**?What is a

**difference**?When would you need to write out numbers with words?

Example:

*One thousand two hundred thirty-four*Add a hypen only when you combine the tens and ones place values. Examples: twenty-five, sixty-four.

Know how to spell these math words:

twenty

eighty

thirty

ninety

forty (no ‘u’)

hundred

fifty

thousand

sixty

million

seventy