Multiplication and division_rules

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Multiplication and division_rules

  1. 1. Multiplicationand DivisionRules to help!
  2. 2. Multiplication andDivision are oppositesSee the Family ofFacts:4 x 3 = 1212 ÷ 3 = 4
  3. 3. It’s all about GroupsMultiplication meansgroups ofDivision means share intogroupse.g. 3 x 2 means 3 groups of 2e.g. 6 ÷ 3 means 6 shared into 3 groups
  4. 4. Multiplying by 0When you multiply by 0the answer is always 0e.g. 4 x 0 = 0e.g. 57,000 x 0 = 0
  5. 5. Multiplying by 1When you multiply anumber by 1, theanswer is always thesame as the numbere.g. 5 x 1 = 1 e.g. 3 x 1 = 3e.g. 35 x 1 = 1e.g. 23,000 x 1 = 23,000
  6. 6. Multiplying by 2Multiplying by 2 is thesame as Doubling oradding the number toitselfe.g. 5 x 2 = 10Double 5 is 105 + 5 = 10
  7. 7. Dividing by 2When you divide by 2 itis the same as halvingthe numbere.g. 50 ÷ 2 = 25Half of 50 is 25
  8. 8. Multiplying by 4If you want to quicklymultiply a number by 4,then just double ittwice! e.g. 6 x 4 = 24double 6 is 12double 12 is 24
  9. 9. Multiplying by 5The 5 times table is easy tolearn, if you remember thatall answers end in a 5 or a05101520253035404550
  10. 10. Multiplying by 10When you multiply by 10,all the digits move 1place to the left and a 0is added.2 320 30200 3002000 3000X 10X 10

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