Question

a) 3.5² + 15.2² - 26 : 2

b) 5³.2 - 100 : 4 + 2³.5

c) 6² : 9 +50.2 - 3^3.3

d) 3².5 + 2^3.10 - 81 : 3

e) 5¹³ : 5¹⁰ - 25.2²

f) 20 : 2² + 5⁹ : 5⁸

Answer 1

a. \(3.5^2+15.2^2-26:2\)

\(=3.25+15.4-26:2\)

\(=75+60-13\)

\(=122\)

b. \(5^3.2-100:4+2^3.5\)

\(=125.2-100:4+8.5\)

\(=250-25+40\)

\(=265\)

c. \(6^2:9+50.2-3^3.3\)

\(=36:9+50.2-27.3\)

\(=4+100-81\)

\(=23\)

d. \(3^2.5+2^3.10-81:3\)

\(=9.5+8.10-81:3\)

\(=45+80-27\)

\(=98\)

e. \(5^{13}:5^{10}-25.2^2\)

\(=5^3-25.4\)

\(=125-100\)

\(=25\)

f. \(20:2^2+5^9:5^8\)

\(=20:4+5\)

\(=5+5=10\)

Answer 2

a) 3.5² + 15.2² - 26 : 2

= 3 . 25 + 15 . 4 - 26 : 2
= 75 + 60 - 13
=122
b) 5³.2 - 100 : 4 + 2³.5
= 125 . 2 - 100 : 4 + 8 . 5
= 250 - 25 + 40
= 265