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Multiplication and Division

Multiplication and Division. Fact Families. 21. 7. x. ÷. 3. Multiplication and Division problems use the same numbers. These groups of numbers are called number or fact families. They all fit together. It’s a SLAM dunk!. Once you know the numbers in the

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Multiplication and Division

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  1. Multiplication and Division Fact Families

  2. 21 7 x ÷ 3 Multiplication and Division problems use the same numbers. These groups of numbers are called number or fact families They all fit together.

  3. It’s a SLAM dunk! Once you know the numbers in the number family, you’ll be able to memorize all of your multiplication and division problems!

  4. Let's Take a Look! 7 3 x 21 = 3 7 x = 21 7 3 21 ÷ = 3 7 21 ÷ =

  5. Now, you try! Use the numbers 8 and 5 Start with the number 8 8 x 5 40 = 5 x 8 40 = 40 5 ÷ 8 = 40 5 ÷ = 8

  6. First multiply 4x2 = 8 2. Next multiply 4x1 = 4 3. Last multiply 4x3 = 12 Now, let’s try some multi-digit multiplication! 312 x 4 12 , 4 8

  7. First multiply 4x4 = 16 2. Put the 6 in the ones place and carrying the 1 to the tens place. • Next multiply 4x1 = 4 and add • the 1 that was carried. 4+1 = 5 4. Last multiply 4x4 = 16 Let’s try more! 1 414 x 4 16 , 5 6

  8. 1. First multiply 8x7 = 56 2. Put the 6 in the ones place and carrying the 5 to the tens place. 5. Last multiply 8x5 = 40 and add the 3 that was carried. 40+3 = 43 3. Next multiply 8x4 = 32 and add the 5 that was carried. 32+5 = 37 4. Put the 7 in the tens place and carrying the 3 to the hundreds place. Are you ready for one more? 3 5 547 x 8 , 43 7 6

  9. Let’s Practice! Solve these problems on a piece of paper. 698 x 7 345 x 6 Click to see answers

  10. Answers 2 3 6 5 698 x 7 345 x 6 2,070 4,886

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