Bootstrap:Algebra (Pyret) Circles of Evaluation Review #1

Match this Circle of Evaluation with the appropriate line of Code below.

• (-2 / 7) / 32

• 32 / (-2 * 7)

• (2 - 7) / 32)

• (-2 * 7) / 32

Match this Circle of Evaluation with the appropriate line of Code below.

• ^{(num-sqr(7)) + (12 - 10)}

• ^{(sqr 7) + (12 - 10)}

• ^{(-12 - 10) + (num-sqr(7))}

• ^{( num-sqr(7)) + (10 - 10)}

Circles of Evaluation are a visual representation of...

• A number

• An expression

• A domain

• A variable

What line of Pyret code could evaluate this arithmetic expression with no errors?

"Five plus the product of ten and negative two"

• ^{5 + (10) - 2}

• ^{5 + (10 * -2)}

• ^{(5 + 10) * -2}

• ^{5 + 10 * -2}

What line of code represents this arithmetic expression*?

(3*5 - 4)²

*Take your time and draw out the Circles of Evaluation, if needed.

• ^{num-sqr((3 * 5) - 4))}

• ^{(sqr (3 * 5) - 4)}

• ^{num-sqr(- 4 (3 * 5))}

• ^{num-sqr(4 - (3 * 5))}

Match this Circle of Evaluation with the appropriate line of Code below.

• ^{(13 + 2) * (-8 - 1)}

• ^{(1 - 8) * 13 + 2}

• ^{(13 + 2) * (1 - 8)}

• ^{(13 + 2) * (- 1 - 8)}

Match this Circle of Evaluation with the appropriate line of Code below.

• ^{(2 - 11) - num-sqrt(9)}

• ^{(sqrt 9) - (2 - 11)}

• ^{num-sqrt(9) - (11 - 2)}

• ^{num-sqrt(9) - (2 - 11)}