Multiples of 10, 100, and 1,000
5 x 6
5 x 60
5 x 600
Train travels 267 miles an hour
ABOUT how far could he travel in 3 hours?
267 > 300
300x3 = ABOUT 900 miles
3x22=
66
There are 21 boxes of markers in the art room. Each box holds 8 markers. How many markers are in the art room?
21x8= 168 markers
44x2=
88
3x7
3x70
3x700
21 210 2,100
Ms. V eats 169 M&Ms an hour
ABOUT how many will she eat in 5 hours?
169 > 200
200x5=1,000
ABOUT 1,000 M&Ms in 5 hours
3x20=
60
To find the product of 2x200, Julia used the basic fact 2x2=4. How many zeros should she include in the product of 2x200?
2 zeros
4x22=
88
8x4
8x40
8x400
32 320 3,200
Bob is going to a four-year college
Tuition is $332 for ONE year
ABOUT how much will 4 years of college tuition cost?
332 > 300
300x4= 1,200
ABOUT $1,200 for four years
1x56=
56
There are 32 chairs in each classroom. What is the total number of chairs in 2 classrooms?
32x2= 64 chairs
5x18=
90
7x2
7x20
7x200
14
140
1,400
Estimate, round to the greatest value
9 x 870 =
870 > 900
9x900 = 8,100
3x11=
33
There are 42 biscuits in each box. How many biscuits are in 2 boxes?
84 biscuits
781x5=
3,905
3x5
3x500
3x5,000
15 1,500 15,000
Estimate, round to the greatest value
3,293 x 3 =
3,293 > 3,000
3,000x3=9,000
4x21=
84
Each prize is worth 3 tickets at the game center. How many tickets are needed for 23 prizes?
23x3= 69 tickets
8x6,328=
50,624