Multiplication by 2 digit numbers
15X20=
15x20=300
145x10=
145x10=1,450
7 x 104 =
7 x 104 = 7 x 10 x 10 x 10 x 10 = 70,000
40 x 70,000 = 28 x 10 --
40 x 70,000 = 28 x 105
A shipping company buys 60 trucks for $30,000 each. What is the total cost?
60 x 30,000 = $ 1,800,000 or 18 x 10 5
24x32
24x32=768
341x24
341x24=8,184
3 x 10 5 =
3 x 10 5 = 300,000
3 x 10 x 10 x 10 x 10 x10
60 x 5,000 = 3 x 10 ---
60 x 5,000 = 3 x 10 5
Martha runs 1,860 yards each day for 4 days. How many yards is she running
19x33=
19x33=627
453x25
453x25=11,325
find the missing number (exponent)
12 x ----- = 12,000
12 x 103 = 12,000
(6x9) x 10 3 =
(6x9) x 10 3 = 54,000
A farmer has a pumpkin field with 7 rows of corn. Each row has 1,289 corn plants. How many corn plants does he have?
The farmer has 9,023 corn plants.
Thats a lot of corn!
26x20=
26x20=520
107x53=
107x53=5671
find the missing number (exponent)
9 x ----- = 90,000
9 x 105 = 90,000
(5x4) x 10 4 =
(5x4) x 10 4 = 200,000
The trick or treaters are coming! The family gives each child 15 pieces or candy. There were 345 trick or treaters that night! Wowww! How much candy did they give out.
5,175 pieces of candy! I hope they all brushed their teeth after that!
17x21=
17x21=357
120 x 20 =
120x20=2400
5,000 x 3,000=
write in exponential form
5,000+3,000= 15 ,000,000
15 x 106
(3x8) x 10 4 =
(3x8) x 10 4 = 240,000
Mrs. Mondo buys pizza for the party at school? There are 21 kids in each class and there are 37 class. How much pizza did she buy?
777 pieces of pizza