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Rounding
Front End Estimation
Mutliplication
Multiplication
Various
100
A number between 20 and 30 is exactly divisible by 12. What is the number?
24
100
Use Front End Estimation to find the sum of the following: 8,325 + 2,654
8,000 + 2,000 = 10,000
100
page 14, number 5
= 6 groups of 5 = 5 + 5 + 5 + 5 + 5 + 5 = 30
100
page 15, number 10
801
100
3, 6, 9, 12 is called _______________
skip counting
200
A number rounded to the nearest 10 is 830. Find the greatest possible number.
834
200
Use Front End Estimation to find the difference of the following: 3,325 - 1,654
3,000 - 1,000 = 2,000
200
page 14, number 6
= 9 groups of 7 = 7 + 7 + 7 + 7 + 7 +7 + 7 + 7 + 7 = 63
200
page 15, number 11
63,124
200
Division is like repeated _____________
subtraction
300
A number rounded to the nearest 100 is 1,700. Find the least possible number.
1,650
300
Use Front End Estimation to find the product of the following: 4,325 x 5,654
4,000 x 5,000 = 20,000
300
page 15, number 7
= 609 = 6,090
300
page 15, number 12
80,464
300
There will be a ____________ when a number cannot be divided exactly by another number.
remainder
400
last page, number 16
31,308 --> 400 -->x 70 28,000 it is reasonable
400
Use front end estimation to solve: About how much money do John and Jose have when they combine their money together if John has $3,204 and Jose has $1,453?
$3,000 + $1,000 = $4,000
400
page 15, number 8
= 672 = 6,720
400
last page, number 13
712 cards
400
__________________ 25 tesn gives 2 hundreds 5 tens
regrouping
500
page 7, number 6
thousands
500
Use front end estimation to solve: About how many chips are left if we started with 5,394 and gave 2,034 away?
5,000 - 2,000 = 3,000 chips
500
page 15, number 9
260
500
last page, number 14
795 beads
500
last page, number 15
11,760 --> 400 -->x 30 12,000 it is reasonable