Vocabulary
An ________________ gives an approximate value rather than an exact answer.
estimate
125 x 2
100 x 2 = 200
20 x 2 = 40
5 x 2 = 10
250
873 x 2
3 x 2 = 6
70 x 2 = 140
800 x 2 = 1600
1,746
126 x 3
378
7 x 10 = _____________
70
The ____________________ tells us we can rearrange our numbers when we multiply and our answer will be the same.
Commutative property
378 x 3
300 x 3 = 900
70 x 3 = 210
8 x 3 = 24
1,134
582 x 4
2 x 4 = 8
80 x 4 = 320
500 x 4 = 2,000
2,328
145 x 5
725
5 x 200 = ______________
1,000
A _______________________ is the name of a number we are multiplying.
Factor
5,236 x 6
5,000 x 6 = 30,000
200 x 6 = 1,200
30 x 6 = 180
6 x 6 = 36
31,416
969 x 3
9 x 3 = 27
60 x 3 = 180
900 x 3 = 2,700
2,907
A school buys 248 pencils for each of its 6 classrooms. How many pencils does the school buy in total?
1,488
4 x 1,000 = _____________
4,000
The ___________________ is the name of our answer when we use multiplication.
Product
6x30
180
An ___________________ is a way of displaying objects in rows and columns.
Array
9 x 2,000 = ______________
18,000