Integrated Algebra - June 2009

26 What is the additive inverse of the expression a - b?

(1) a + b (3) -a + b

(2) a - b (4) -a - b

27 What is the product of 12 and 4.2 × 10^{6 }expressed
in scientific notation?

(1) 50.4 × 10^{6 } (3) 5.04 × 10^{6}

(2) 50.4 × 10^{7} (4) 5.04 × 10^{7}

28 To calculate the volume of a small wooden cube, Ezra
measured an edge of the cube as 2 cm. The actual length of the
edge of Ezra’s cube is 2.1 cm. What is the relative error in his
volume calculation to the nearest hundredth?

(1) 0.13 (3) 0.15

(2) 0.14 (4) 0.16

EduSolution -

Helping Students

to succeed!

Main Menu

This is one of the absolute best sites I've found online, and I say that as a teacher who has spent countless hours looking for kid-friendly material on the net. I have no idea how you found the time and energy to put it together, but you have my admiration! - Andrew Cowells, Concord Jr. High