BI 7th Grade 3.1 Review

Evaluate the expression. Write fractions in simplest form. 1. -2/7 × 7/4 + 5/6 = _______

• -1/2

• 1/2

• 5/6

• -7/12

Evaluate the expression. Write fractions in simplest form. 2. -2/3 × ( -9/10 ) ÷ 8/3 = _______

• 4

• 2/5

• -3/2

• 5/3

Evaluate the expression. Write fractions in simplest form. 3. 3.3 + 2.9 × ( -1.4 ) = _______

• -0.76

• 1.76

• -5.36

• 2.38

Order the numbers from least to greatest.

• 3/4, 78%, 7/8, 0.85, 87%

• 78%, 3/4, 0.85, 7/8, 87%

• 0.85, 3/4, 78%, 7/8, 87%

• 3/4, 0.85, 78%, 87%, 7/8

Are the expressions 3 - 5x and 4.25 - 5x - 4.25 equivalent?

• Yes, they are equivalent because 4.25 - 4.25 simplifies to 0, so both expressions become 3 - 5x.

• No, they are not equivalent because the constants are different.

• Yes, they are equivalent because both have the same variable term.

• No, they are not equivalent because one has more terms than the other.

Determine whether the expressions are equivalent.

1.25x + 4 + 0.75x - 3 and 2x + 1.

• Yes, the expressions are equivalent.

• No, the expressions are not equivalent.

• The expressions are equivalent only for x = 0.

• The expressions are equivalent only for x = 1.

Identify the terms and like terms in the expression: t + 8 + 3t

• Terms: t, 8, 3t; Like Terms: t, 3t

• Terms: t, 8, 3t; Like Terms: 8, 3t

• Terms: t, 8; Like Terms: t, 8

• Terms: t, 3t; Like Terms: 8, 3t

Identify the terms and like terms in the expression: 3z + 4 + 2 + 4z

• Terms: 3z, 4, 2, 4z; Like Terms: 3z, 4z, 4, 2

• Terms: 3z, 4, 2, 4z; Like Terms: 3z, 2, 4z

• Terms: 3z, 4, 2, 4z; Like Terms: 3z, 4, 2

• Terms: 3z, 4, 2, 4z; Like Terms: 4, 2

Identify the terms and like terms in the expression: 2n - n - 4 + 7n

• Terms: 2n, -n, -4, 7n; Like Terms: 2n, -n, 7n

• Terms: 2n, n, -4, 7n; Like Terms: 2n, n, 7n

• Terms: 2n, -n, -4, 7n; Like Terms: -4, 2n, 7n

• Terms: 2n, -n, -4, 7n; Like Terms: 2n, -n, -4