16. What should be the value of N to make exponential notation below true, 73 - N a. 21 b. 49 c. 303 d. 343 17. What is the value of the exponential notation 557 a. 25 b. 75 c. 125 d. 625 18. What is the value of 4 x 4 x 4x4x4? a. 20 b. 64 c. 256 d. 1024 19. Which should be in the blank if you compare the two exponential notations below?35 532 a. < b. > C. = d.? _20. What is the first step in solving problem using GEMDAS rule? a. Addition b. Subtraction (c. Multiplication d. Perform the operation inside the parenthesis _21. What does M in GEMDAS stands for? a. Meaning b. Math c. Mind d. Multiplication 22. What does Gin GEMDAS means? a. Grades b. Guidance c. Gross d. Grouping symbols 23. To evaluate the expression below, which should be performed first? 21-27: 3 = a. 21 - 27 b. 27 + 3 c. 27 - 21 d. 21 + 3 24. Which will be simplified first in the expression below? 23 +5 x 4 a. 23 b.23 + 5 c. 5 x4 d. 23 + 4 25. In the expression 8 + 6 - 4x3, what is the last to be performed? a. 8 +6 b. 6-4 0.4x3 d. 8-4 26. What is the opposite of -8? a. -7 b.7 C.-8 d. 8 27. What is the opposite of 100? a. -100 b.-99 c. 99 d.-001 28. What is 3 units to the right of O? a. 3 b.2. c. 1 29. Which of the following real-life situations is an example of negative integer? a. Move 7 steps forward c. depositing 8000 b. Losing weight of 5kg d. 20 meters above sea level 30. Which word shows negative integers? a. Gain b. more c. north d. drop d.0