UNIT 6 MATH REVIEW Miss Bowen 4 th Grade Math DIVIDING BY 10S, 100S, AND 1,000S 42,000 / 6 = ? DIVIDING BY 10S, 100S, AND 1,000S 42,000 / 6 = ? 42,000 / 6 = ___,000 42/ 6 = 7 42,000 / 6 = 7,000 DIVIDING BY 10S, 100S, AND 1,000S 3,600 / 4 = ? DIVIDING BY 10S, 100S, AND 1,000S 3,600 / 4 = ? 3,600 / 4 = ___00 36 / 4 = 9 3,600 / 4 = 900 DIVIDING BY 10S, 100S, AND 1,000S 4,000 / 5 = ? DIVIDING BY 10S, 100S, AND 1,000S 4,000 / 5 = ? 4,000 / 5 = ___00 40 / 5 = 8 4,000 / 5 = 800 DIVIDING BY 10S, 100S, AND 1,000S 630 / 9= ? DIVIDING BY 10S, 100S, AND 1,000S 630 / 9= ? 630 / 9 = ___0 63 / 9 = 7 630 / 9= 70 DIVIDING BY 10S, 100S, AND 1,000S 490,000 / 7 = ? DIVIDING BY 10S, 100S, AND 1,000S 490,000 / 7 = ? 490,000 / 7 = ___0,000 49 / 7 = 7 490,000 / 7 = 70,000 ESTIMATING QUOTIENTS 11,889 / 3 = ESTIMATING QUOTIENTS 11,889 / 3 = Underline the first two digits of the dividend 11,889 / 3 = List multiples 0,3,6,9,12,15,18,21,24,27,30 Find the closest multiple. Change the first two digits to the multiple and all other digits to zero. 11 12 and 889 000 / new number 11,889 12,000 Solve the equation 12,000 / 3 = 4,000 ESTIMATING QUOTIENTS 21,119 / 8 = ? ESTIMATING QUOTIENTS 21,119 / 8 = ? Underline the first two digits of the dividend 21,119 / 8 = ? List multiples 0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80 Find the closest multiple. Change the first two digits to the multiple and all other digits to zero. 21 24 and 119 000 / new number 21,119 24,000 Solve the equation 24,000 / 8 = 3,000 ESTIMATING QUOTIENTS 34,988 / 6 = ? ESTIMATING QUOTIENTS 34,988 / 6 = ? Underline the first two digits of the dividend 34,988 / 6 = ? List multiples 0, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 Find the closest multiple. Change the first two digits to the multiple and all other digits to zero. 34 36 and 988 000 / new number 34,988 36,000 Solve the equation 36,000 / 6 = 6,000 ESTIMATING QUOTIENTS 312 / 5 = ? ESTIMATING QUOTIENTS 312 / 5 = ? Underline the first two digits of the dividend 312 / 5 = ? List multiples 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60 Find the closest multiple. Change the first two digits to the multiple and all other digits to zero. 31 30 and 2 0 / new number 312 300 Solve the equation 300 / 5 = 60 ESTIMATING QUOTIENTS 3,912 / 4 = ? ESTIMATING QUOTIENTS 3,912 / 4 = ? Underline the first two digits of the dividend 3,912 / 4 = ? List multiples 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40 Find the closest multiple. Change the first two digits to the multiple and all other digits to zero. 39 40 and 12 00 / new number 3,912 4,000 Solve the equation 4,000 / 4 = 1,000 USING MODELS TO SOLVE DIVISION PROBLEMS 554 / 4 = ? USING MODELS TO SOLVE DIVISION PROBLEMS 554 / 4 = ? How many hundreds can I take away? 554 400 = 154 How many tens can I take away? 154 120 = 34 How many ones can I take away? 34 32 = 2 What is my remainder? 2 left over Find the sum of one group = 138 r 2 554 / 4 = 138 r USING MODELS TO SOLVE DIVISION PROBLEMS 1,286 / 6 = ? USING MODELS TO SOLVE DIVISION PROBLEMS 1,286 / 6 = ? How many hundreds can I take away? 1,286 1,200 = 86 How many tens can I take away? = 26 How many ones can I take away? 26 24 = 2 What is my remainder? 2 left over Find the sum of one group = 214 r 2 1,286 / 6 = 214 r USING MODELS TO SOLVE DIVISION PROBLEMS 2,349 / 3 = ? USING MODELS TO SOLVE DIVISION PROBLEMS 2,349 / 3 = ? How many hundreds can I take away? 2,349 2,100 = 249 How many tens can I take away? 249 240 = 9 How many ones can I take away? 9 9 = 0 What is my remainder? 0 left over Find the sum of one group =783 2,349 / 3 = USING MODELS TO SOLVE DIVISION PROBLEMS 493 / 8 = ? USING MODELS TO SOLVE DIVISION PROBLEMS 493 / 8 = ? How many hundreds can I take away? 493 0 = 493 How many tens can I take away? 493 480 = 13 How many ones can I take away? 13 8 = 5 What is my remainder? 5 left over Find the sum of one group = 61 r 5 493 / 8 = 61 r USING PLACE VALUE TO SOLVE DIVISION PROBLEMS 693 / 4 = ? USING PLACE VALUE TO SOLVE DIVISION PROBLEMS 693 / 4 = ? r _________ 1 USING PLACE VALUE TO SOLVE DIVISION PROBLEMS 876 / 3 = ? USING PLACE VALUE TO SOLVE DIVISION PROBLEMS 876 / 3 = ? _________ 0 USING PLACE VALUE TO SOLVE DIVISION PROBLEMS 964 / 7 = ? USING PLACE VALUE TO SOLVE DIVISION PROBLEMS 964 / 7 = ? R _________ 5 USING PLACE VALUE TO SOLVE DIVISION PROBLEMS 379 / 9 = ? USING PLACE VALUE TO SOLVE DIVISION PROBLEMS 379 / 9 = ? x 4 2 R USING PLACE VALUE TO SOLVE DIVISION PROBLEMS 709 / 7 = ? USING PLACE VALUE TO SOLVE DIVISION PROBLEMS 709 / 7 = ? R _________ 2 WORD PROBLEMS Laura has 986 pennies. She puts an equal amount of pennies in 7 bowls. How many pennies are in each bowl? How many pennies are left over? USING PLACE VALUE TO SOLVE DIVISION PROBLEMS Understand986 pennies into 7 bowls # pennies are in each bowl? PlanPennies / # of bowls = # of pennies in each bowl Remainder = # left over Solve R pennies in each bowl with 6 left over Check140 x 7 = (remainder) = 986 WORD PROBLEMS Chris read a 1,182 page book in 6 days. If he always read the same number of pages, how many pages did he read each day? USING PLACE VALUE TO SOLVE DIVISION PROBLEMS Understand1,182 in 6 days number of pages each day? Plan1,182 Pages / 6 days = # of pages per day Solve x Chris read 197 pages per night Check197 x 6 =1182 WORD PROBLEMS The Phillies made $1,905 on hot dog sales in one night. If hot dogs cost $5 each, how many hot dogs were bought at the game? USING PLACE VALUE TO SOLVE DIVISION PROBLEMS Understandmade $1,905on hot dogs $5 each how many hot dogs were bought? Plan$1,905 total sales / $5 each = # of people who bought hot dogs Solve x hot dogs were sold Check381 x $5 = $1,905 WORD PROBLEMS There are 149 students going on a class trip. If each van can hold 9 students, how many vans are needed to get all of the students to the class trip? USING PLACE VALUE TO SOLVE DIVISION PROBLEMS Understand149 students 9 students per van # of vans needed? Plan149 students / 9 per van = # of vans ** round remainder up so that all student shave a ride Solve x 1 6 r Vans needed Check17 x 9 = 153 (149 students/ one van will have 4 extra seats)