2. Review for Quarter 1 Test 1 I. Base Ten Place-Value II. Exponents III. Expanded Notation IV.Estimating Whole Numbers V. Order of Operations

3. Estimate: 74,298 + 126,001 ≈ Answer: 70,000 + 130,000 = 200,000

4. Evaluate: [8 ÷ (1 + 3) x 5 2 - 2] ÷ 6 Answer: 8

5. Answer: 300,000 ÷ 600 ≈ 500 Estimate: 320,176 ÷ 623 ≈

6. Complete the statement. Use +, -, x or ÷. Use the symbol only once. Do not use parentheses. 7 ___ 7 ___ 7 ___7 = 14 Answer: 7 + 7 ÷ 7 x 7 = 14

7. 10 12 = Answer: 1,000,000,000,000

8. 35=35= Answer: 243

9. Estimate: 4,298 x 63 ≈ Answer: 4,000 x 60 ≈ 240,000

10. What is the value of the 4 in 54,907,112? Answer: 4,000,000

11. In the number 68,134,754,029, the 6 is in which place-value? Answer: ten billions

12. 3,000,000 + 6,000 + 500 + 30 + 8 = Answer: 3,006,538

13. (2 x 10 8 ) + (7 x 10 6 ) + (1 x 10 3 ) + (5 x 10 0 ) = Answer: 207,001,005

14. In 801,692,746, the zero is in which place-value? Answer: ten millions

15. 72,009,260 written in expanded form using powers of 10 is _______ Answer: (7x10 7 )+(2 x 10 6) +(9 x 10 3 )+(2 x 10 2 )+(6 x 10 1 )

16. Compare. Use or =. 1) 3 3 ___ 2 5 2) 10,000 0 ____ 10 4 3) 2 6 ____ 4 3 Answers: 1) < 2) < 3) =

17. The standard form of 3 4 and 3 -4 are ______ of each other. Answer: reciprocals

18. ___ 3 = 343 Answer: 7

19. 2 -- =1/64 Answer: 2 -6

20. The standard form of (2 x 10 7 )+(9 x 10 4 )+(1 x 10 2 )+(6 x 10 1 ) is __________ Answer: 20,090,160

21. Estimate: 52,178 - 3,823 ≈ Answer: 52,000 - 4,000 = 48,000

22. True or False: 5 4 =4 5 Explain. Answer: False. 5 4 = 5x5x5x5=625 4 5 = 4x4x4x4x4=1024