3-digit numbers (Basic Concepts)：練習問題

Which of the following is the numeral for seven hundred and eighty-six?

Which 3-digit number is greater than \( 500 \) but smaller than \( 510 \), and is also an odd number?

I am a 3-digit number. My hundreds digit is \( 2 \). My tens digit is three times my hundreds digit. My units digit is half of my tens digit. What number am I?

Which number comes immediately after \( 699 \) when counting onwards by \( 1 \)s?

What is the largest 3-digit odd number that can be formed using the digits \( 4 \), \( 5 \), and \( 8 \)? Each digit can be used only once.

Write the 3-digit number that consists of 5 hundreds, 9 tens, and 2 units.

What is the largest 3-digit even number that has a 5 in the tens place?

I am a 3-digit number. My hundreds digit is half of 8. My tens digit is 2 more than my hundreds digit. My units digit is 0. Am I an odd or even number?

Amy is playing with number cards. She uses them to form a 3-digit number. The number she forms has 4 in the hundreds place, 0 in the tens place, and 7 in the units place.

a) Write the number Amy formed in numerals.
b) Is Amy's number an odd number or an even number?
c) Compare Amy's number with the number 470. Use the words 'greater than' or 'smaller than' to describe Amy's number compared to 470.
d) If Amy counts onwards from her number by 1, what is the next number?

A set of number cards contains the digits 7, 0, and 4. Use each card exactly once to answer the following:

a) Form the largest 3-digit number possible.
b) Form the smallest 3-digit number possible.
c) Is the number formed in part (a) odd or even?
d) Compare the number from part (a) and part (b) using the symbol \( > \).