Vocabulary
An _____________________ gives an approximate answer instead of an exact answer
Estimate
967 x 19
1000 x 20
20,000
Overestimate
1,427 x 19
27,113
75 x 105
7,500,000
A ___________________ is the name of a number we are multiplying.
Factor
232 x 22
200 x 20 = 4000
underestimate
576 x 53
30,528
234 x 103
234,000
The _____________________ is the name of our answer when we use multiplication.
Product
375 x 29
400 x 30 = 12000
overestimate
4, 156 x 39
162,084
97 x 104
970,000
When we round up and then solve we are finding an _________________________.
Dr. Peterson works 178 hours each month. How many hours does she work in a year?
2,136
93 x 10 x 10 x 10 x 10
93 x 104
When we round down and then solve we are finding an ________________________.
underestimate
A bakery bakes 356 cupcakes each day. If they sell these cupcakes to customers for $12 each, how much money does the bakery make in one day from selling all the cupcakes?
4,272
421 x 10 x 10 x 10 x 10 x 10
421 x 105