Multiply by 10 or 100
10 x 4 =
40
3 x 40 =
120
200 x 3 =
600
Use breaking apart to find:
14 x 6 =
10 x 6 = 60
4 x 6 = 24
60 + 24 = 84
Ms. Lopez has 5 rows of tomato plants. There are 30 plants in each row. How many tomato plants does Ms. Lopez have?
5 x 30 = 150
10 x 9 =
90
60 x 8 =
480
7 x 800 =
5,600
Use breaking apart to find:
56 x 5 =
50 x 5 = 250
6 x 5 = 30
250 + 30 = 280
A store has 6 boxes of oranges. Each box holds 20 oranges. How many oranges are there?
6 x 20 = 120
100 x 7 =
700
70 x 9 =
630
900 x 8 =
7,200
Use breaking apart to find:
36 x 4 =
30 x 4 = 120
6 x 4 = 24
120 + 24 = 144
There are 7 bookcases in each library with 200 books in each bookcase. How many books are in the library?
7 x 200 = 1,400
100 x 10 =
1,000
80 x 40 =
3,200
40 x 500 =
20,000
Use breaking apart to find:
43 x 3 =
40 x 3 = 120
3 x 3 = 9
120 + 9 = 129
In one day, a restaurant sells 300 burgers for $6 each. How much money did the restaurant take in from the sale of burgers on that day?
$6 x 300 = $1,800
100 x 100 =
10,000
90 x 60 =
5,400
70 x 900 =
63,000
Use breaking apart to find:
93 x 6 =
90 x 6 = 540
3 x 6 = 18
540 + 18 = 558
Ryan buys 4 boxes of crayons. Each box contains 38 crayons. How many crayons does Ryan buy?
4 x 38 = 152