AnswersGrade 7 MathematicsOperations with Rational Numbers

Operations with Rational Numbers — Test Answers

25 verified answers3 views
1
Free Preview

In which step did his first error occur?

A
step 4
B
step 1
C
step 3
D
step 2
2
Free Preview

What is the difference of the fractions? Use the number line to help find the answer. 1 fifth minus 3 fourths Expand Image

A
negative 19 over 20
B
negative 11 over 20
C
19 over 20
D
11 over 20
3

Which product is positive?

A
2 fifths times open paren negative 8 ninths close paren times open paren negative 1 third close paren times open paren negative 2 sevenths close paren
B
open paren negative 2 fifths close paren times open paren negative 8 ninths close paren times 1 third times 2 sevenths
C
2 fifths times 8 ninths times 1 third times open paren negative 2 sevenths close paren
D
open paren negative 2 fifths close paren times 8 ninths times open paren negative 1 third close paren times open paren negative 2 sevenths close paren
4

Mr. Maddox asked four students to create a number line to help find the sum of the fractions. negative 7 tenths plus 4 tenths Which number line would be best to find this sum?

A
Image with description A number line ranges from 0 to fifteen-tenths by tenths.
B
Image with description A number line ranges from four-tenths to eleven-tenths by tenths.
C
Image with description A number ranges line from negative eight-tenths to 0 by tenths.
D
Image with description A number ranges line from negative three-tenths to three-tenths by tenths.
5

A recipe that makes 4 servings calls for 2 thirds cup of flour. How much flour is required to make 20 servings?

A
3 and 1 third cups
B
6 cups
C
2 over 15 cups
D
2 thirds cups
6

What is the simplified value of the following expression? negative 8 times negative 3

A
11
B
negative 24
C
negative 11
D
24
7

Which number line correctly shows 4 point 5 minus 2 point 5 ?

A
Image with description A number line from 0 to 4 point 5 by halves. A ray extends from 0 to 4 point 5. A second ray above the first ray extends from 4 point 5 to 2.
B
Image with description A number line from negative 4 point 5 to 2 point 5 by halves. A ray extends from 2 point 5 to 0. A second ray extends from 0 to negative 4 point 5.
C
Image with description A number line from negative 4 point 5 to 0 by halves. A ray extends from 0 to negative 4 point 5. A second ray above the first ray extends from negative 4 point 5 to negative 2.
D
Image with description A number line from negative 2 point 5 to 4 point 5 by halves. A ray extends from negative 2 point 5 to 0. A second ray extends from 0 to 4 point 5.
8

Which shows two products that both result in negative values?

A
negative 2 point 4 times 1 point 8 and negative 0 point 6 times negative 0 point 4
B
2 point 4 times negative 1 point 8 and 0 point 6 times negative 0 point 4
C
2 point 4 times negative 1 point 8 and negative 0 point 6 times negative 0 point 4
D
negative 2 point 4 times negative 1 point 8 and negative 0 point 6 times negative 0 point 4
9

Which expression best estimates 6 and 3 fourths divided by 1 2 thirds ?

A
3 divided by 2
B
7 divided by 2
C
6 divided by 1
D
8 divided by 3
10

Which expression is equivalent to 63 point 5 6 plus negative 81 point 4 7 ?

A
63 point 5 6 plus 81 point 4 7
B
63 point 5 6 minus 81 point 4 7
C
negative 63 point 5 6 plus 81 point 4 7
D
negative 63 point 5 6 minus 81 point 4 7
11

What is the simplified value of the following expression? 1 third divided by 2 thirds

A
1 third
B
0
C
1 half
D
1
12

Compatible numbers for 2 point 4 and negative 0 point 1 8 are 2 point 5 and negative 0 point 2 What is the estimation of the product of 2 point 4 times negative 0 point 1 8 using these compatible numbers?

A
negative 0 point 4
B
negative 0 point 5
C
0 point 4
D
0 point 5
13

Which number line correctly shows 1 point 5 plus 2 point 5 ?

A
Image with description A number line from 0 to 6 point 5 by halves. A ray extends from 1 point 5 to 3. A second ray extends from 3 to 5 point 5.
B
Image with description A number line from 0 to 6 point 5 by halves. A ray extends from 0 to 2 point 5. A second ray extends from 2 point 5 to 5.
C
Image with description A number line from 0 to 6 point 5 by halves. A ray extends from 0 to 1 point 5. A second ray extends from 1 point 5 to 3.
D
Image with description A number line from 0 to 6 point 5 by halves. A ray extends from 0 to 1 point 5. A second ray extends from 1 point 5 to 4.
14

Nika baked three loaves of zucchini bread. Each loaf needed 17 fourths cups of flour. Which expression shows the best estimate of the number of cups of flour that Nika used?

A
5 plus 5 plus 5 is equal to 15
B
17 plus 17 plus 17 is equal to 51
C
4 plus 4 plus 4 is equal to 12
D
4 plus 4 plus 4 is equal to 16
15

What is the first step when applying properties of operations to divide 73 point 8 5 by 4 point 1 ?

A
Multiply the divisor and dividend by 10 .
B
Divide the divisor and dividend by 100 .
C
Divide the divisor and dividend by 10 .
D
Multiply the divisor and dividend by 100 .
16

Which expression has a positive quotient?

A
the fraction with numerator 2 and 2 sevenths and denominator negative 1 fifth
B
negative 6 over 5 thirds
C
the fraction with numerator negative 1 eighth and denominator 3 and 1 fifth
D
negative 3 fourths over negative 2 thirds
17

Claudio needs to simplify the given expression. the fraction with numerator 3 point 5 times 2 plus 9 and denominator open paren 7 point 1 plus 0 point 5 close paren plus 4 Which operation should he perform first?

A
7 point 1 plus 0 point 5
B
2 plus 9
C
3 point 5 plus 9
D
0 point 5 plus 4
18

What is the simplified value of the given expression? 8 point 5 plus open paren 12 plus 4 close paren times 2 minus 7

A
10 point 5
B
97 point 5
C
88 point 5
D
33 point 5
19

Which division expression is equivalent to the fraction with numerator 4 and 1 third and denominator negative 5 sixths ?

A
13 thirds divided by open paren negative 5 sixths close paren
B
negative 13 thirds divided by open paren negative 5 sixths close paren
C
negative 5 sixths divided by 13 thirds
D
13 thirds divided by 5 sixths
20

Which product is negative?

A
3 eighths times open paren negative 5 sevenths close paren times open paren negative 1 fourth close paren
B
open paren negative 3 eighths close paren times open paren negative 5 sevenths close paren times 1 fourth
C
open paren negative 3 eighths close paren times open paren negative 5 sevenths close paren times open paren negative 1 fourth close paren
D
3 eighths times 5 sevenths times 1 fourth

Did you find these answers helpful?

More from this Course

Quiz
24 verified answers

Test

Quiz
23 verified answers

Test

Quiz
25 verified answers

Test