stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
multiplying 2 digit numbers Flashcards | StudBud
Explore
/
multiplying 2 digit numbers
multiplying 2 digit numbers
25 terms
·
StudBud Administration
·
2,749 plays
using partial products, estimation, area models and regrouping
Flashcards
25 cards
F
Practice quiz
P
Host live
L
Questions
25
Answers
1
In the problem 15 X 23, when you multiply the ones digits you get.....
3
18
30
15
2
Find the estimated product of 26 X $59
$1800
$180
$150
180
3
Ali has 6 times as many pens as her brother Eli. Eli has 9 pens. How many pens does Ali have?
55 pens
60 pens
53 pens
54 pens
4
In this problem 172 x 5, the 5 x 70 = ?
350
3500
360
340
5
In mental math when multiplying 400 x 80 the product will have
four zeros in the answer
three zeros in the answer
two zeros in the answer
five zeros in the answer
6
Find two possible factors for the estimated products of 2800
70 x 4
40 x 70
40 X 60
50 X 40
7
You can use all the methods below except ____to solve multiplication problems.
mental math
partial products
expanded form
models
8
Multiply 40 X 400
16000
160
1600
160000
9
solve by mental math 30 X 300
900
9000
90
90000
10
What is an estimate?
it's whatever you think it is
it tells you what you are trying to find in the problem.
it's the actual value
a close guess of actual answer
11
if both estimated factors are less than the actual factors then
it doesn't matter the answer is the same
the estimated product will be less than the actual product
The product will be totally wrong
the estimated product will be more than the actual product
12
Attendance at the hockey game was 103,567. What is the value of the digit 3?
300
30
30000
3000
13
In the problem 31 X 35 the numbers round to...
30 x 30
30 x 35
31 x 40
30 x 40
14
Estimate using compatible numbers. 24 X 9
300
180
250
220
15
In the problem 45 X 67, when you multiply both number in the tens place you get?
350
2400
280
240
16
Phil has 4 times as many ties as Mike. Altogether they have 20 ties. How many does Mike have?
4 ties
5 ties
6 ties
24 ties
17
The biggest error when doing partial products may be .....
aligning up the numbers to add them up
multiplication
all of the above
skipping a partial product when multiplying
18
When you regroup, where do you record the number you regrouped?
at the top of the next place to the right
at the top of the next place to the left
at the bottom of the problem
in your head
19
What is another name for 38 ten thousands?
380,000
380
38,000
3,800
20
Another word we can use for estimation may be....
rounding
take a guess
actual
distributive property
21
A concert reported 15675 fans attended the arena. What is this rounded to the nearest thousand
16000
15700
20000
15000
22
Estimate if a movie theater has 26 rows of 18 seats. About how many can watch the movie?
600 people
400 people
500 people
300 people
23
The best estimate of 5 x 143 is
5000
50
500
400
24
What is a reasonable estimate for the product 25 X 52?
1800
150
1500
1000
25
A hotel has 8 rooms. There are 3 people in each & Each person uses 2 pillows, how many needed?
46 pillows
24 pillows
6 pillows
48 pillows
