Convert 2114235 to base 10.

2114235 = 2 × 55 + 1 × 54 + 1 × 53 + 4 × 52 + 2 × 51+3 × 50= 6250 + 625+ 125+100+10+3 = 711310Thus, 2114235 = 711310

Q8 of 124 Page 42

Convert 211423₅ to base 10.

211423₅ = 2 × 5⁵ + 1 × 5⁴ + 1 × 5³ + 4 × 5² + 2 × 5¹+

3 × 5⁰

= 6250 + 625+ 125+100+10+3 = 7113₁₀

Thus, 211423₅ = 7113₁₀

Convert 1238₁₀ to base 5.

Convert 10234₅ to base 10.

Convert 98567₁₀ to base 8.

Convert 688₁₀ to base 8.

Questions · 124

2. Scientific notations of real numbers and logarithms

1 1 1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 1 2 2 2 2 2 2 3 3 3 3 3 3 4 4 4 4 4 4 5 5 5 5 5 5 6 6 6 6 6 6 7 7 7 7 7 7 7 7 8 9 9 9 9 9 9 1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 3 4 4 4 4 4 4 5 6 6 6 6 6 6 6 6 6 6 6 6 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10