Select all the numbers that are prime.
(1 point)
Responses
9
9
11
11
19
19
29
29
39
19 answers
11, 19, 29
Choose Yes or No:
(2 points)
21 is a prime number.
Choose
31 is a prime number.
Choose
51 is a composite number.
Choose
96 is a composite number.
Choose
(2 points)
21 is a prime number.
Choose
31 is a prime number.
Choose
51 is a composite number.
Choose
96 is a composite number.
Choose
No - 21 is not a prime number.
Yes - 31 is a prime number.
Yes - 51 is a composite number.
Yes - 96 is a composite number.
Yes - 31 is a prime number.
Yes - 51 is a composite number.
Yes - 96 is a composite number.
Select all the numbers that are composite.
(1 point)
Responses
11
21
31
41
51
(1 point)
Responses
11
21
31
41
51
21, 51
Roberto has 4 times as many toy cars as John. Roberto has 20 toy cars.
Which equation can you use to find the amount of cars that John has?
(1 point)
Responses
4×20=a
4 × 20 = a
20−4=a
20 - 4 = a
a×4=20
a × 4 = 20
a×20=4
a × 20 = 4
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Which equation can you use to find the amount of cars that John has?
(1 point)
Responses
4×20=a
4 × 20 = a
20−4=a
20 - 4 = a
a×4=20
a × 4 = 20
a×20=4
a × 20 = 4
Skip to navigation
20 ÷ 4 = a
Roberto has 4 times as many toy cars as John. Roberto has 20 toy cars.
Which equation can you use to find the amount of cars that John has?
(1 point)
Responses
4×20=a
20−4=a
a×4=20
a×20=4
Which equation can you use to find the amount of cars that John has?
(1 point)
Responses
4×20=a
20−4=a
a×4=20
a×20=4
a×4=20
The following question has two parts. First, answer part A. Then, answer part B.
Part A
Martina is trying to find a factor pair for the number 62. She says that because 62 is an even number, then 2 has to be one of the factors in a factor pair.
Do you agree with Martina's reasoning? If you agree, find the missing factor. If you disagree, find another factor pair for 62. In either case, make sure you explain how you use one factor to find the other factor in the pair.
(2 points)
Part A
Martina is trying to find a factor pair for the number 62. She says that because 62 is an even number, then 2 has to be one of the factors in a factor pair.
Do you agree with Martina's reasoning? If you agree, find the missing factor. If you disagree, find another factor pair for 62. In either case, make sure you explain how you use one factor to find the other factor in the pair.
(2 points)
I agree with Martina's reasoning. Since 62 is an even number, it is divisible by 2. To find the missing factor, we can divide 62 by 2:
62 ÷ 2 = 31
So, the factor pair for 62 is (2, 31).
62 ÷ 2 = 31
So, the factor pair for 62 is (2, 31).
no not that one
Apologies for the confusion. Since I disagree with Martina's reasoning, we need to find another factor pair for 62.
To determine the other factor pair, we can start by finding the factors of 62 by dividing it by different numbers:
62 ÷ 1 = 62
62 ÷ 2 = 31
62 ÷ 3 = 20.67 (not a whole number)
62 ÷ 4 = 15.5 (not a whole number)
62 ÷ 5 = 12.4 (not a whole number)
62 ÷ 6 = 10.33 (not a whole number)
62 ÷ 7 = 8.86 (not a whole number)
62 ÷ 8 = 7.75 (not a whole number)
62 ÷ 9 = 6.89 (not a whole number)
62 ÷ 10 = 6.2 (not a whole number)
From these calculations, we can see that 62 is divisible by 1, 2, 31, and 62. Therefore, the factor pairs for 62 are (1, 62), (2, 31), (31, 2), and (62, 1).
To determine the other factor pair, we can start by finding the factors of 62 by dividing it by different numbers:
62 ÷ 1 = 62
62 ÷ 2 = 31
62 ÷ 3 = 20.67 (not a whole number)
62 ÷ 4 = 15.5 (not a whole number)
62 ÷ 5 = 12.4 (not a whole number)
62 ÷ 6 = 10.33 (not a whole number)
62 ÷ 7 = 8.86 (not a whole number)
62 ÷ 8 = 7.75 (not a whole number)
62 ÷ 9 = 6.89 (not a whole number)
62 ÷ 10 = 6.2 (not a whole number)
From these calculations, we can see that 62 is divisible by 1, 2, 31, and 62. Therefore, the factor pairs for 62 are (1, 62), (2, 31), (31, 2), and (62, 1).
Choose Yes or No to tell whether the first number is a multiple of the second number.
(2 points)
18, 3
Choose
22, 7
Choose
45, 3
Choose
78, 6
Choose
Remaining Attempts : 3
(2 points)
18, 3
Choose
22, 7
Choose
45, 3
Choose
78, 6
Choose
Remaining Attempts : 3
Yes - 18 is a multiple of 3.
No - 22 is not a multiple of 7.
Yes - 45 is a multiple of 3.
Yes - 78 is a multiple of 6.
No - 22 is not a multiple of 7.
Yes - 45 is a multiple of 3.
Yes - 78 is a multiple of 6.
Gavin counted the number of days until the end of school.
If he counted the days in groups of 7, which list shows the numbers Gavin could have named?
(1 point)
Responses
7, 15, 22, 30
7, 15, 22, 30
7, 14, 21, 30
7, 14, 21, 30
7, 14, 21, 28
7, 14, 21, 28
14, 21, 32, 38
14, 21, 32, 38
Remaining Attempts : 3
If he counted the days in groups of 7, which list shows the numbers Gavin could have named?
(1 point)
Responses
7, 15, 22, 30
7, 15, 22, 30
7, 14, 21, 30
7, 14, 21, 30
7, 14, 21, 28
7, 14, 21, 28
14, 21, 32, 38
14, 21, 32, 38
Remaining Attempts : 3
7, 14, 21, 28
no
Apologies for the mistake. If Gavin counted the days in groups of 7, the correct list of numbers he could have named is:
7, 14, 21, 28.
7, 14, 21, 28.
1 answer