Welcome to your Large and Small Numbers(Study by Topics Junior Class) NAME EMAIL PHONE NUMBER 1. Correct each of the numbers 38.7152 and 0.05381 to two significant figures and find their product, correct to two significant figures is 0.21 1.9 2.0 2.1 2. Reduce each number in the following expression to two significant figures and then evaluate:(0.04371 × 2.44913)/ 0.047512 1.6 1.8 2.2 2.4 The measured length of a rod of actual length 50 cm exceeded the actual length by 5 percent. The measured length of the rod is 3. How many significant figures are there in 0.002000? 4 3 1 2 4. Write 5.48 × 10^{-4} as a decimal fraction. 0.00000548 0.0000548 0.00548 0.000548 0.0548 5. Write 0.00054 in standard form. 5.4 × 10^2 0.54 × 10^3 54 × 10^3 5.4 × 10^-4 5.4 × 10^-3 6. 48493 can be written as 0.465 x 10⁴ 4.85 x 10⁴ 11148493 x 10⁴ 4.84 x 10⁴ 7. Write 8.89 x 10‾²¹ in the ordinary form. 889000000000000000000000 0.00000000000000000000889 890 8900000000000 8. The number 1.5714286, corrected to 5 decimal places is 1.57140 1.57143 1.57100 1.57142 9. Write 4.22 x 10¹² in the ordinary form 422 4220000000000 0.00000000042 4300000000000 10. Standard form of 2145.67 is None of the mentioned 2.14567*10^3 2.14*10^3 0.214*10^4 11. 0.00000004004584 can be written as 4.00 x 10‾⁸ 40046 x 10‾⁸ 0.40 x 10⁸ 0.40 x 10‾⁸ 12. A bar of length 30 cm was measured as 31.7 cm. The percentage error correct to 2 significant figures is 5.67 5.4 5.7 5.0 13. Find correct to 0ne decimal place: 0.31744 ÷ 0.0407 7.8 0.8 7.9 8.0 14. Express 4570000 in standard form. 457 × 10^4 4.5 × 10^6 4.0 × 10^-4 4.57 × 10^6 45.7 × 10^5 15. The difference between 0.003286 correct to three significant figures and 0.003286 correct to four decimal places is 0.00001 0.0003 0.000004 0.00009 The value of √(42,000) correct to three significant figures is 16. Which of the following answers is another way to state the value of 2? 4/6 1.5 2/2 2.0 17. Evaluate correct to two decimal places50 + 1/50 + 3/500 + 25/5000 50.20 50.30 50.03 50.02 18. 485000384 can write as 4.85000384 0.485 x 10⁸ 4.85 x 10⁸ 485 x 10⁸ 1 out of 20 Time is Up! Time's up