Place Value and Value
Expanded Form
Rounding
Front End Estimation
Multiplication
100
What is the value of the 7 in 789?
700
100
What is the expanded form of 74?
70+4
100
What are both of our rounding rules? (hint ______ than___, round_____ and ________ than____, round _______)
Greater than 5, round up Less than 5 round down.
100
What is front end estimation? (Think about how you solve front end estimation.)
Keep the greatest place value and turn all other digits to zero (answers may vary)
100
What place value do we multiply first?
Ones
200
What is the place value of the 8 in 28,215?
Thousands
200
What is the expanded form of 843?
800+40+3
200
What is 78 rounded to the nearest ten?
80 8>5, so round up
200
In front end estimation you keep the (greatest, smallest) place value?
Greatest
200
What is 42 x 6? Use the place value method to solve. 42 x 6 12 240 252
42 12 x 6 240 252
300
What is the place value of 6 in 63,210?
Ten Thousands
300
What is the expanded form of 92,806?
90,000+2,000+800+6
300
What is 342 rounded to the nearest 10?
340 2<5, round down
300
Add 78 + 34 then use front end estimation to check your work.
78 + 34= 112 70 + 30= 100
300
What is 823 x 5? Use the place value method to solve. 823 15 x 5 100 4000 4,115
823 15 x 5 100 4000 4,115
400
What is the value of the 9 in 192,345?
90,000
400
10,000+4,000+300+20+5 is the expanded form of what number?
14,325
400
Add 386 + 829, then round to the nearest hundred to check your work.
386 + 829= 1,215 400 + 800= 1,200
400
Subtract 23,986 - 5,211, then use front end estimation to check your work.
23,486 - 12,273= 11,213 20,000- 10,000= 10,000
400
What is 718 x 6? Use place value method to solve.
718 48 x 6 60 4200 4,308
500
What is the value of every digit in 27,698?
2= 20,000 7= 7,000 6= 600 9= 90 8= 8
500
80,000+4,000+70+2 is the expanded form of what number?
84,072
500
Subtract 942 - 761, then round to the nearest 100 to check your work.
942-761= 181 900-800= 100
500
Add 63,231 + 6,243, then use front end estimation to check your work.
63,231 + 6,243= 69,474 60,000 + 6,000= 66,000
500
What is 5,329 x 3? Use place value method to check your work.
5,329 27 x 3 60 900 15000 15,987
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