1. The expression 5 can be written using exponents as _____. A. 50 B. 1(5) C. 51 D. 15 Hint 2. Select the correct first step when using the order of operations. A. Do all additions and subtractions from left to right. B. Do all multiplications and divisions from left to right. C. Do all operations within grouping symbols starting with the innermost grouping symbols. D. Evaluate all powers in order from left to right. Hint 3. Simplify the expression A. 34 B. 36 C. 16 D. 310 Hint 4. A whole number that has exactly two factors, the number itself and 1, is called a ______. A. square number B. radical number C. composite number D. prime number Hint 5. The best whole number estimate for is _____. A. 9.5 B. 9 C. 10 D. 8 Hint 6. Ilias wants to build a square pond for a fountain in his yard. He wants the area of the square to be as close as possible to 150 square feet, but not over 150 square feet. Find the length in whole feet of the largest square pond that he can build and still have the area be less than 150 square feet. A. 11.5 feet B. 12 feet C. 13 feet D. 11 feet Hint 7. Simplify the expression . A. m1.625 B. m5 C. m-5 D. m21 Hint 8. Simplify the expression A. B. C. D. Hint 9. The distance around the equator of Jupiter is approximately 4.49 × 108m, and a normal football field is about 1.1 × 102m long. About how many football fields could fit lengthwise across Jupiter's equator? A. 4,080,000 football fields B. 408,000 football fields C. 408 football fields D. 40,800,000,000 football fields Hint 10. The rule for multiplying by powers of 10 states that if the exponent of the 10 is negative, then you move the decimal point __________. A. to the right by the same number of spaces as the number in the exponent B. to the right by the number of spaces as the number in the exponent minus 1 C. to the right by the number of spaces as the number in the exponent plus 1 D. to the left by the same number of spaces as the number in the exponent Hint 11. Evaluate the expression . A. 0.0004 B. 40,000 C. 0.004 D. 4,000 Hint 12. Simplify the expression . A. 12 B. 8 C. 20 D. 14 Hint 13. Find the length of the leg of the right triangle. A. 12.5 cm B. 17.7 cm C. 4 cm D. 5 cm Hint 14. Determine if the triangle is a right triangle. Explain. A. Yes; the sum of the squares of the lengths of the legs is equal to the square of the hypotenuse. B. Yes; the sum of the lengths of the legs is equal to the length of the hypotenuse. C. No; the sum of the lengths of the legs is not equal to the length of the hypotenuse. D. No; the sum of the squares of the lengths of the legs is not equal to the square of the hypotenuse. Hint