Multiplying with Multiples of 10
30 x 30 =
900
Multiply 84 x 3 using the break apart method.
(80 x 3) = 240 (4 x 3) = 12
240 + 12 = 252
88 x 3 =
264
75 x 12 =
900
The new city garden has 3,211 pots for plants. Each pot has 3 vegetable plants inside. How many vegetable plants are there altogether?
22,477
60 x ___ = 4,800
80
Break apart 751 into its hundreds, tens, and ones. Then multiply 751 x 6 using the break apart method.
(700 x 6) = 4,200 (50 x 6) = 300 (1 x 6) = 6
4,200 + 300 + 6 = 4,506
904 x 7 =
6,328
14 x 36 =
504
Each book shelf contains 34 books. There are 9 book shelves. How many books are there total?
306
20 x ____ = 600
30
True or False: The partial products for 28 x 9 are 180 and 72.
True! (20 x 9) = 180 and (8 x 9) = 72.
875 x 6 =
5,250
78 x 62 =
4,836
Lauren's Bracelet Club needs to collect $500 to meet their goal. They sold 25 bracelets for $16 each. Did they meet their goal?
No, they only earned $400 so far.
60 x 30
1,800
Break apart 47 into its tens and ones. Then multiply 47 x 9 using the break apart method.
(40 x 9) = 360 (7 x 9) = 63
360 + 63 = 423
8,991 x 5
44,955
37 x 64 =
2,368
Gregory studied his math facts every day in February for 28 days. Each day, he studied for 35 minutes. How many minutes did he study in all?
980 minutes total
2,000
Break apart 326 into its hundreds, tens, and ones. Then multiply 326 x 5 using the break apart method.
(300 x 5) = 1,500 (20 x 5)= 100 (6 x 5) = 30
1,500 + 100 + 30 = 1,630
5,682 x 7
39,774
25 x 99
2,475
Mrs. Stanek made an area model to solve 67 x 81. She says the partial products are 4,800 , 5,600 , 60, and 7. Is she correct?
No.. 7 x 80 = 560 not 5,600. Even teachers make mistakes!