multiply by 10 & 100
5 x 10
50
7 x 70 =
490
4 x 36
4 x 30 = 120
4 x 6 = 24
120 + 24 = 144
63 x 6
60 x 6
360
Mrs. Ortiz can make 50 tortillas out of one batch of dough. If she makes 4 batches of dough, how many tortillas can she make?
a. 8
b. 20
c. 200
d. 2,000
50 x 4 = 200
1 x 100
100
3 x 20 =
60
3 x 19
3 x 10 = 30
3 x 9 = 27
30 + 27 = 57
9 x 48
9 x 50
450
Which shows one way to use breaking apart to find 7 x 32?
a. (7 x 30) + (7 x 2)
b. (7 x 30) - (5 x 2)
c. (2 x 30) + (3 x 2)
d. 30 x 7
a. (7 x 30) + (7 x 2)
6 x 100
600
7 x 50 =
350
6 x 23
6 x 20 = 120
6 x 3 = 18
138
2 x 97
2 x 100
200
A factory produces 295 cars in one week. How many cars does the factory produce in 4 weeks?
a. 885
b. 1, 180
c. 1, 200
d. 1, 220
b. 1, 180
Luis has 4 rolls of pennies. There are 100 pennies in each roll. How many pennies does Luis have?
a. 40
b. 104
c. 400
d. 4,100
c. 400
2 x 700 =
1, 400
4 x 24
4 x 20 = 80
4 x 4 = 16
80 + 16 = 96
39 x 5
40 x 5
200
4 x 100
400
10 + 10 + 10 + 10 is the correct addition sentence for which multiplication fact?
a. 1 x 10 = 10
b. 10 x 4 = 4
c. 4 x 10 = 4
d. 4 x 10 = 40
d. 4 x 10 = 40
Which has the greater product? 40 x 80 or 8 x 400?
8 x 400
5 x 143
5 x 100 = 500
5 x 40 = 200
5 x 3 = 15
715
538 x 3
500 x 3
1, 500
5 x 17 How do I break this apart?
(5 x 17)
(5 x 10) = 50
(5 x 7) = 35