decimal multiplication patterns
1x3.19=
10x3.19=
100x3.19=
1,000x3.19=
3.19
31.9
319
3190
use a model to show 5x.03 and check your answer by multiplying
.30 or .3
place the decimal point in the product for 6.81x7
47.67
450.8
p229
a group of friends go to the zoo. Jack spends $3.75. Aubrey spends 3 times as much as Jack. Ava spends $5.25 more than Aubrey. How much does Aubrey spend?
use a diagram
Jack $3.75
Aubrey 3x$3.75=11.25
Ava 3x$3.75+$5.25=16.50
45.6x1
45.6x10
45.6x100
45.6x1000
45.6
456
4560
45600
use a model and check your answer to find 2x.38
.76
find the product 6.32x3
18.96
18.2
p230
Carsen collects $45.00 for the book fair. Jensen collect $18.07 more than Carsen. Sophia collects 2 times as much as Jensen. How much money does Sophia collect?
Use a diagram
Carsen $45.18
Jensen $45.18+18.07=63.25
Sophia $63.25x2=126.50
1x6.391
0.1x6.391
0.01x6.391
6.391
639.1
63.91
use a model and check your answer to find 4x.24
.96
find the product 4.5x8
36 or 36.0
use place value to show the product 16x9.18
146.88
Marjorie buys a pair of jeans for $24.95. Harper spends $3.50 more for the same pair of jeans but bought 2 pairs.
How much money did Harper spend?
Marjorie $24.95
Harper $24.95+3.50x2=$56.90
It is the process used to find the total number of items in a given number of groups
multiplication
how many groups are in 3x4.5
3
find the product 40.7x5
203.5
use a model to show the product 19x.75
14.25
p231
At a video game store it costs $10.45 to buy one game. it costs 3 times as much to buy one movie. which answer is correct
$41.80
$31.35
$20.90
$41.80
It is the value of a digit in a number based on the location of the digit
place value
how many groups are in the product of 3x.62
1.86
it is a way to write a number that shows the value of each digit
expanded form
use a model to show 27x8.3
224.1
p231
A baker made 5 dozen cookies. How many cookies did he make in total? (1 dozen = 12)
60