Multiplication and Division Basic Facts

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Presentation transcript:

Multiplication and Division Basic Facts Review for Chapter 4 Multiplication and Division Basic Facts

Objective 4.1 Use multiplication properties and division rules Which property is represented by this equation? (3 x 4) x 2 = 3 x ( 4x 2) Commutative Property Associative Property Property of One Property of Zero

Objective 4.1 Use multiplication properties and division rules Which property is represented by this equation? _____ x 4 = 4 Commutative Property Associative Property Property of One Property of Zero

Objective 4.1 Use multiplication properties and division rules Which property is represented by this equation? 5 x 7 = 7 x 5 Commutative Property Associative Property Property of One Property of Zero

Objective 4.1 Use multiplication properties and division rules Solve. Explain the rule you used. If there is no solution, tell why. 9 ÷ 9= Any number divided by itself equals 1.

Objective 4.1 Use multiplication properties and division rules Solve. Explain the rule you used. If there is no solution, tell why. 5 ÷ 0 = It is impossible to divide by zero.

Objectives 4.2/4.3 Use multiplication facts & patterns to help you divide • • • Write a fact family for the array. 3 × 3 =9 9 ÷ 3 = 3

Objectives 4.2/4.3 Use multiplication facts & patterns to help you divide • • • • • Write a fact family for the array. 3 × 5 = 15 5 × 3 = 15 15 ÷ 3 = 6 15 ÷ 6 = 3

Objectives 4.2/4.3 Use multiplication facts & patterns to help you divide Write a fact family for the array. x 1 2 3 4 5 6 3 × 6 = 18 6 × 3 = 18 18 ÷ 3 = 6 18 ÷ 6 = 3

Objectives 4.2/4.3 Use multiplication facts & patterns to help you divide Write a fact family for these numbers. 5, 5, 25 5 x 5 =25 25 ÷ 5 =5

Objective 4.4/4.5: Multiplication & Division facts to 5 and 10. Solve 35 ÷ 7 42 5 28 6

Objective 4.4/4.5: Multiplication & Division facts to 5 and 10. Solve 4 X 8 = 32 4 42 12

Objective 4.4/4.5: Multiplication & Division facts to 5 and 10. Solve (2 x ___ ) x2 = 4 x 6 6 4 24

Objective 4.4/4.5: Multiplication & Division facts to 5 and 10. 16 ÷ 4 = (16 ÷ 2) ÷ 6 4 24

Objective 4.8: Learn how to divide when there are remainders. 5)9 1 R 4 4 2 R 3

Objective 4.8: Learn how to divide when there are remainders 20 ÷ 6 26 3 R 2 4R2

4.9: Decide what operations to use to solve problems. Tomorrow is the final day that reading cards may be turned in . Tina has been reading for 45 minutes already today. If she is supposed to read 70 minutes a day how many more minutes will Tina need to read tonight? 115 35 25

4.9: Decide what operations to use to solve problems. The school has a goal of donating 7 IPADS to each classroom. If there are 5 classrooms, how many IPADS need to be donated? 12 35 2

4.9: Decide what operations to use to solve problems. Mark and his two sisters shared the cost of an expensive book. It cost $18. If the siblings spent an equal amount, how much did each sibling pay? $9 $36 $6

4.9: Decide what operations to use to solve problems. On Monday, Marcia read 38 pages. On Tuesday she read 37 more pages. Wednesday and Thursday she forgot to read. Friday, she read 56 pages. How many pages did she read this week? 131 75 93