This worksheet contains questions on the 4 operations (8 questions per operation), differentiated 3 ways.

Level 1:
Addition 3 digit + 2 digit
Subtraction 2 digit - 2 digit
Multiplication 2 digit x 1 digit
Division 2 digit ÷ 1 digit

Level 2:
Addition 3 digit + 3 digit (plus some units of measurement + conversion)
Subtraction 3 digit - 3 digit (plus some units of measurement + conversion)
Multiplication 3 digit x 1 digit
Division 2 digit ÷ 1 digit

Level 3:
Addition 4 digit + 3 digit (plus some units of measurement + conversion)
Subtraction 4 digit - 3 digit (plus some units of measurement + conversion)
Multiplication 3 digit x 1 digit (plus some units of measurement + conversion)
Division 3 digit ÷ 1 digit

The units of measurement (plus conversion) questions are extra challenge to provide context for the calculations, but of course could deleted and used just as numerical questions.