1 digit x 2 digit
2 x 10
20
2 x 134
268
10 x 18
180
There are 12 markers in a pack. If there are 20 packs, how many markers are there?
There are 240 markers.
Estimate 13 × 25 by rounding each number to the nearest ten.
10 x 20 = 200
150
4 x 529
2,116
22 x 15
A football game ticket costs $25 each person. A group of 13 people go to the game. What is the cost of the ticket for the group?
The cost of the tickets for the group is $325.
Estimate 894 × 503 by rounding each number to the nearest hundred.
900 x 500 = 4,500
4 x 36
144
5 x 904
4,520
64 x 46
2,944
There is a bake sale at school. The price for each cookie is $3. If 347 cookies are sold, how much money will be made at the sale?
$1,041 will be made at the bake sale.
Which of the following describes the best estimate for 48 × 60?
50 x 60 = 3,000
9 x 58
522
6 x 553
3,318
87 x 73
6,351
Mr. Campion bought 13 bags of red kickballs with 12 kickballs in each bag. Ms. Fry bought 11 bags of blue kickballs with 26 kickballs in each bag. How many more blue kickballs are there than red kickballs?
13 x 12 = 156 red kickballs
11 x 26 = 286 blue kickballs
286 - 156 = 130 more blue kickballs than red kickballs.
What is the estimated product of 9 and 4,208?
9 x 4,000 = 36,000
10 x 4,000 = 40,000
7 x 89
623
9 x 749
6,741
99 x 88
8,712
Kelly likes to make bracelets and necklaces. She uses 15 purple beads on each of the 8 bracelets and 23 purple beads on each of 6 necklaces. She has 32 purple beads left over. How many purple beads did she use in all?
15 x 8 = 120 beads on bracelets
23 x 6 = 138 beads on necklaces
120 + 138 = 258 purple beads used
258 - 32 = 226 beads were used in all
Estimate 5,680 × 3,245 by rounding each number to the nearest thousand.
6,000 x 3,000 = 18,000