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Unit 1: Order of Operations and Whole Numbers Test Review. Teacher Model. Interpret 7 + (2 x 3) ÷ 5. Guided Practice. Interpret (12 – 6) 3 + 7. Guided Independent Practice. Interpret 4 + (3 x 8). Independent Practice. Interpret 9 ( 12 – 9) ÷ 3. Teacher Model.
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Teacher Model Interpret 7 + (2 x 3) ÷ 5
Guided Practice Interpret (12 – 6) 3 + 7
Guided Independent Practice Interpret 4 + (3 x 8)
Independent Practice Interpret 9 ( 12 – 9) ÷ 3
Teacher Model If you multiply 395 x 76, your answer would be between : • 2,500 and 3,000 • 25,000 and 27,000 • 27,000 and 29,000 • 30,000 and 35,000
Guided Practice If you multiply 724 x 54, your answer would be between : • 37,000 and 40,000 • 32,000 and 37,000 • 29,000 and 32,000 • 3,000 and 4,000
Independent Guided Practice If you multiply 512 x 29, your answer would be between : • 1,400and 1,800 • 13,000 and 16,000 • 17,000 and 19,000 • 21,000 and 24,000
Independent Practice If you multiply 342 x 45, your answer would be between : • 21,000 and 27,000 • 18,000 and 20,000 • 15,000 and 17,000 • 12,000 and 14,000
Teacher Model Sally bought 1,000 pencils for $2 each. How much did she spend?
Guided Practice John has 100 plane models. Each one costs $3. How much did he spend?
Guided Independent Practice Caleb wants 100 new pens. Each one costs $2. How much will he spend?
Independent Practice Bill wants to buy 1000 toy cars for children at Christmas. Each one costs $4. How much does he need to collect?
Teacher Model Which expression shows the “the quotient of 12 and 3 increased by 9”? • 12 x 3 + 9 • 12 ÷ (3 +9) • 12 ÷ 3 + 9 • 12 + 3 x 9
Guided Practice Which expression shows “subtract 5 from 12 then multiply by 8”? • 5 – 12 x 8 • 12 – 5 x 8 • (12 – 8) x (12 – 5) • 8 x (12 – 5)
Independent Guided Practice Which expression shows “the difference of 9 and 3 divided by 2 multiplied by 8”? • (9 – 3) ÷ 2 x 8 • 9 – 3 ÷ 2 x 8 • 9 – 3 ÷ (2 x 8) • 2 x 8 – 9 ÷ 3
Independent Practice Which expression shows “the quotient of 16 and 4 multiplied by 2 increased by 7”? • 16 ÷ 4 - (2 + 7) • 16 x (4 ÷ 2) + 7 • 2 x (16 ÷ 4) + 7 • 7 + 16 ÷ (4 x 2)
Teacher Model Which number goes in the blank? 45 x 101 = 450 45 x 102 = 4500 45 x 103 = ________ • 45 • 4,500 • 45,000 • 450,000
Guided Practice Which number goes in the blank? 67 x 105 = 6,700,000 67 x 104 = 670,000 67 x 103 = ________ • 67,000 • 6,700 • 670 • 67
Independent Guided Practice Which number goes in the blank? 93 x 102 = 9,300 93 x 103 = 93,000 93 x 104 = ________ • 93,000 • 930,000 • 9,300,000 • 93,000,000
Independent Practice Which number goes in the blank? 27 x 101 = 270 27 x 102 = 2,700 27 x 103 = ________ • 270 • 27,000 • 2,700,000 • 27,000,000
Teacher Model Which mental math strategy solves the division problem? 2100 50 a. (210 ÷ 50) + 0 b. 21 ÷ 5 c. (2,000 ÷ 20) + (100 ÷ 1) d. (2,000 ÷ 50) + (100 ÷ 50)
Guided Practice Which mental math strategy solves the division problem? 1500 10 a. (150 ÷ 10) + 0 b. 15 ÷ 10 c. (1,000 ÷ 10) + (500 ÷ 0) d. (1,000 ÷ 10) + (500 ÷ 10)
Independent Guided Practice Which mental math strategy solves the division problem? 1300 20 a. (1,000 ÷ 10) + (300 ÷ 10) b. 19 ÷ 10 c. (1,000 ÷ 13) + (300 ÷ 20) d. (1,000 ÷ 20) + (300 ÷ 20)
Independent Practice Which mental math strategy solves the division problem? 1800 25 a. (1,000 ÷ 20) + (800 ÷ 5) b. 18 ÷ 25 c. (1,000 ÷ 25) + (800 ÷ 25) d. (1,000 ÷ 25) + (1,000 ÷ 18)
Teacher Model Use the following chart to determine the rule.
Guided Practice Use the following chart to determine the rule.
Independent Guided Practice Use the following chart to determine the rule.
Independent Practice Use the following chart to determine the rule.
Teacher Model Estimate the following multiplication problem. 496 x 45 Explain the steps you would use in 3 complete sentences. __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Guide Practice Estimate the following multiplication problem. 603 x 28 Explain the steps you would use in 3 complete sentences. __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Independent Guide Practice Estimate the following multiplication problem. 829 x 67 Explain the steps you would use in 3 complete sentences. __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Independent Practice Estimate the following multiplication problem. 875 x 79 Explain the steps you would use in 3 complete sentences. __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Let’s Practice Order of Operations 5 x 6 x 2 + 7 =
Let’s Practice Order of Operations [ 15 ÷ 3 + (4 + 5) ÷ 3 ] ÷ 8 + 9
Let’s Practice Order of Operations { 4 + [6 (5 – 2) ÷ 3] – 5}
Teacher Model If a box of tile will cover 25 square feet, about how many boxes of tile will be needed to cover a floor that measures 15 feet by 10 feet?
Guided Practice If a can of stain will cover 50 square feet, about how many cans of stain will be needed to cover a deck that measures 20 feet by 20 feet?
Independent Guided Practice If a can of paint will cover 25 square feet, about how many cans of paint will be needed to cover a wall that measures 20 feet by 10 feet?
Teacher Model Show your answer in this format: 5 x 102 = 500 You wash cars for $20 a car. How much money would you make if you washed 100 cars? How much for 1,000 cars?
Guided Practice Show your answer in this format: 5 x 102 = 500 You clean windows for $5 a window. How much money would you make if you washed 10 windows? How much for 100 windows?
Independent Guided Practice Show your answer in this format: 5 x 102 = 500 You cut grass for $25 a yard. How much money would you make if you cut 100 yards? How much for 1000 yards?
Independent Practice Show your answer in this format: 5 x 102 = 500 You baby sit for $20 a day. How much money would you make if you baby sat for 10 days? How much for 100 days?
Teacher Model How many thousands can you make from 500 tens? • 5,000 • 500 • 50 • 5
Guided Practice How many hundreds can you make from 300 ones? • 3,000 • 300 • 30 • 3
Independent Guided Practice How many thousands can you make from 200 tens? • 2,000 • 200 • 20 • 2
Teacher Model James needs to buy tile for his bathroom floor. The tiles are sold individually or in boxes of 12 tiles. Each tile is 1 square foot. If the bathroom is 11 feet by 9 feet, how many boxes and individual tiles should he buy if he wants the exact number of tiles to cover the floor? • 9 boxes and 4 individual tiles • 8 boxes and 3 individual tiles • 7 boxes and 3 individual tiles • 99 boxes an 4 individual tiles
Guided Practice Troy needs to buy tile for his kitchen floor. The tiles are sold individually or in boxes of 15 tiles. Each tile is 1 square foot. If the kitchen is 12 feet by 17 feet, how many boxes and individual tiles should he buy if he wants the exact number of tiles to cover the floor? • 15 boxes and 4 individual tiles • 14 boxes and 1 individual tiles • 13 boxes and 9 individual tiles • 12 boxes an 4 individual tiles
Independent Guided Practice Davis needs to buy tile for his foyer floor. The tiles are sold individually or in boxes of 12 tiles. Each tile is 1 square foot. If the foyer is 8 feet by 10 feet, how many boxes and individual tiles should he buy if he wants the exact number of tiles to cover the floor? • 6 boxes and 8 individual tiles • 80 boxes and 1 individual tiles • 7 boxes and 3 individual tiles • 8 boxes an 4 individual tiles
Independent Practice Caleb needs to buy tile for his bathroom floor. The tiles are sold individually or in boxes of 15 tiles. Each tile is 1 square foot. If the bathroom is 13 feet by 10 feet, how many boxes and individual tiles should he buy if he wants the exact number of tiles to cover the floor? • 9 boxes and 1 individual tiles • 8 boxes and 10 individual tiles • 8 boxes and 5 individual tiles • 7 boxes an 8 individual tiles