2.
3. -1 or
4.
5.
6.
7.
Drill 5
Estimated Answer Calculator Answer
1 .0.4 × 0.9 = 0.36 0.3741
2 .44 ÷ 0.03 = 1,466 1,457.7
3 .3.7 ÷ 0.02 = 185 186
4 .0.7 – 3.6 = –2.9 –2.89
Fundamentals Drill 1: No Calculator Section
1. A Take it one phrase at a time. The “sum” means you will add two things. The “squares of x and
y” means to square x and square y, or x^2 and y^2 . Add these to get x^2 + y^2 . Cross out any choice
that does not have x^2 + y^2 as the first part of the equation. You’re left with (A), which is the
correct answer.
4. D Plug in the number given for a in the expression to find the value: –2 + (–2)^2 – (–2)^3 + (–2)^4 –
(–2)^5 . Remember PEMDAS, the order of operations: The first thing to do here is deal with the
Exponents, then we can take care of the Addition and Subtraction: –2 + 4 – (–8) + 16 – (–32),
which simplifies to –2 + 4 + 8 + 16 + 32 = 58, (D).
6. C Negative exponents mean to take the reciprocal and apply the positive exponent. So 9–2 =
= . Now find what power of equals . Because 3^4 = 81, = , and x must be 4. The
