Steps to Solve
When multiplying you start first with the digits on the far left or far right?
far right (lesser value)
Wendy is going on a 12-day bike trip. She plans to ride 35 miles a day. How many total miles will she ride on the trip?
420 miles
What is the FIRST partial product of the equation:
472x95
10
When using the area model 'box method' to multiply, you are labeling the columns and rows with what form of the multi-digit number? (standard, word or expanded)
expanded form
What math operation do you use with all partial product lines to find the final product?
addition
The word 'of' means what math operation?
Dustin drives 225 miles each month for work. How many miles does he drive for work every year?
2,700 miles
Using standard algorithm, solve the problem 112 x 21
2,352
How would you label the columns to break down the number 452 and how many columns would there be?
400, 50, 2; 3 columns
How many partial products will there be when multiplying a 2-digit number by a 2-digit number?
4 partial product lines
When multiplying the numbers 615 x 42, how many partial product lines will there be? Why?
2 lines; 2-digits or 2 place values in the number 42 (ones and tens)
A hotel washes 458 sheets each day. How many sheets does the hotel wash in 110 days?
50,380 sheets
Using the area model, solve 24x16
384
In the number 1509, would you still need to label the tens column with a 0? Why?
no, the zero has no value
When we solve using partial products and area model, we multiply by the (digit or value)
value
In the second line using STANDARD ALGORITHM what is written down first before you begin multiplying the digits?
0 (place holder)
A website averages 3,245 clicks per hour. How many clicks does the website get in 24 hours?
77,880 clicks
Using standard algorithm, solve 304 x 23
6992
In the problem 1042 x 435 how would you label the columns & rows of the area model?
columns: 1000, 0, 40, 2
rows: 400, 30, 5
In the problem 142 x 43 what would be the product of the second line? USING STANDARD ALGORITHM
5,680
When multiplying a 3-digit number by 2-digit, why must you write a 0 in the second line?
Because the second digit you multiply is in the tens place.
Mrs. Shirley earns $1,525 per week. How much will she earn in 15 weeks?
$22,875
Using the area model, solve 450 x 62
27,900
In the problem 1042 x 435, what two numbers are you multiplying in the top left box & what is the partial product for that box?
1000 x 400 = 400,000
What are 2 or more tips for success in solving multiplication using standard algorithm?
neat handwriting; copying the problem down correctly; knowing your multiplication facts; lining up your place values; carrying any numbers; remember to add the carried values