We included HMH Into Math Grade 4 Answer Key PDF Module 10 Review to make students experts in learning maths.
HMH Into Math Grade 4 Module 10 Review Answer Key
Vocabulary
array
composite
divisible
factor pair
multiple
pattern
prime
term
Choose the correct term from the Vocabulary box to complete the sentence.
Question 1.
Two numbers that make a product are called a ____
Answer:
Two numbers that make a product are called a multiple.
Explanation:
Two numbers that make a product are called a multiple.
For example: 2 × 3 = 6.
Question 2.
A number is ___ by another number if the quotient is a whole number and the remainder is 0.
Answer:
A number is divisible by another number if the quotient is a whole number and the remainder is 0.
Explanation:
A number is divisible by another number if the quotient is a whole number and the remainder is 0.
For example: 4 ÷ 2 = 2.
Question 3.
A ___ number is a whole number greater than 1 that has exactly two factors.
Answer:
A prime factor number is a whole number greater than 1 that has exactly two factors.
Explanation:
A prime factor number is a whole number greater than 1 that has exactly two factors.
Question 4.
A ___ is one number or object in a list of numbers or objects that changes according to a rule.
Answer:
A composite is one number or object in a list of numbers or objects that changes according to a rule.
Explanation:
A composite is one number or object in a list of numbers or objects that changes according to a rule.
Concepts and Skills
Question 5.
Use Tools Select all of the factor pairs of 18. Tell what strategy or tool you will use to solve the problem, explain your choice, and then find the answers.
(A) 9 and 9
(B) 9 and 2
(C) 18 and 1
(D) 6 and 3
(E) 8 and 1
(F) 4 and 5
Answer:
All of the factor pairs of 18:
(B) 9 and 2
(C) 18 and 1
(D) 6 and 3
Explanation:
Factors of 18:
1 × 18 = 18.
2 × 9 = 18.
3 × 6 = 18.
Question 6.
Complete the table to indicate if each number is a factor of 12, a multiple of 12, or both.
Answer:
Explanation:
21 = 3 × 7.
25 = 5 × 5.
39 = 3 × 13.
41 = 1 × 41.
Question 7.
Which number is a multiple of 6?
(A) 24
(B) 28
(C) 32
(D) 46
Answer:
24 number is a multiple of 6.
Explanation:
24 = 4 × 6
28 = 4 × 7
32 = 4 × 8
46 = 2 ×23
Question 8.
Which statement about the number 16 is true?
(A) 16 is divisible by exactly 4 numbers.
(B) All factors of 16 are composite numbers.
(C) All multiples of 16 are also factors of 16.
(D) 16 is a multiple of each of its factors.
Answer:
Statement the number 16 is true:
(A) 16 is divisible by exactly 4 numbers.
(B) All factors of 16 are composite numbers.
(C) All multiples of 16 are also factors of 16.
(D) 16 is a multiple of each of its factors.
Explanation:
A composite number is one that has more than two factors. It has as its factors 1, itself, and at least one more number.
16 = 4 × 4
Question 9.
Complete the table to identify each number as prime or composite.
Answer:
Explanation:
Multiple of:
6 = 2 × 3
12 = 2 × 6; 3 × 4
24 = 2 × 12; 3 × 6; 4 × 6.
36 = 2 × 18; 3 × 12; 4 × 9.
Question 10.
Rachel’s locker number is prime. Select all the answers that could be Rachel’s locker number.
(A) 9
(B) 11
(C) 18
(D) 23
(E) 27
(F) 31
Answer:
All the answers that could be Rachel’s locker number:
(B) 11
(D) 23
(F) 31
Explanation:
(A) 9 = 3 × 3; 1 × 9.
(B) 11 = 1 × 11.
(C) 18 = 2 × 9; 3 × 6; 1 5 18.
(D) 23 = 23 × 1.
(E) 27 = 3 × 9; 27 × 1.
(F) 31 = 1 × 31.
Question 11.
The first term in a pattern is 7. The pattern follows the rule add 4. What is the fifth term in the pattern? ____
Answer:
The pattern:
7, 11, 15, 19, 23.
Explanation:
First term in a pattern = 7.
The pattern follows the rule add 4.
=> 7 + 4 = 11.
=> 11 + 4 = 15.
=> 15 + 4 = 19.
Fifth term in the pattern = 19 + 4 = 23.
Question 12.
The first term in a pattern is 55. The pattern follows the rule subtract 6. Complete the pattern.
55, ___, __, ___, ___, ___
What is another feature of this pattern that is not described in the rule?
______________________
Answer:
Pattern:
55, 49, 43, 37, 31, 25.
Explanation:
First term in a pattern = 55.
The pattern follows the rule subtract 6.
=> 55 – 6 = 49.
=> 49 – 6 = 43.
=> 43 – 6 = 37.
=> 37 – 6 = 31.
=> 31 – 6 = 25.