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Multiplication and Division within 100

3.OA.7
Answer Keys Here

Aligned To Common Core Standard:

Grade 3 Operations - 3.OA.7

Tips for Multiplication and Division- Multiplication and division problems are more challenging for kids to solve as compared to addition and subtraction. With these super-effective and simple tips and tricks, kids can easily solve multiplication and division problems. Multiplication - Multiplying by 2 means you have to add the number twice; 2x4=2+2+2+2=8 - Multiplying by four is to double the number twice; 4x2, double of 2 is 4, and the double of 4 is 8. - Multiplying by 5 means you have cut the number in half, and multiply by 10. 5x6, half of 6 is 3 and 3x10=30 - Multiplying by 5 can provide the answer even when you multiply by 10 and then cut the answer into half. 4x10=40, cut into half, you get 20, which is the answer when you multiply 5 by 4. - When six is multiplied by an even number, they both end in the same digit. 6x2=12, 6x6=36 - Multiplying by 8 means doubling thrice. 8x2, double of 2 is 4, double of 4 is 8, and double of 8 is 16. - When multiplying a number by 10, just add a zero at the end of the digit; 10x2=20, 10x5=50 Division - You can check the answer of a division sum by multiplying the quotient by the divisor. - If the sum of a number is divided by 3, the number will also be divisible by 3 - Any number divided by 1 results in the number itself; 2x1=2, 5x1=5 - If the last two digits of a number are divisible by 4, the number will also be divisible by 4 - If the last digit is an even number, it will be dividable by 2

Printable Worksheets And Lessons




Homework Sheets

A sheet for each skill followed by using the skill of finding doubles and halves.

  • Homework 1- This can be thought of as repeated addition.
  • Homework 2- Complete all the division problems in the various formats.
  • Homework 3- You run a cheese shop. Your inventory can be seen below. On Monday, you had double this inventory. On Tuesday, you had half of this inventory.



Practice Worksheets

A whole bunch of different formats in here. See how it goes.




Math Skill Quizzes

Many people asked for a nice mix of problems each quiz has 24 problems.

  • Quiz 1- Solve all the problems.
  • Quiz 2- Follow these guys to the end.