Question

give me some easy questions of exponent and power for class 7 be fast​

Answer 1

Answer:

1. ( a + b ) ² - ( a - b ) ² ......

Answer 2

Answer:

1 st question

Express the following numbers in standard form (i) 0.0000000000085 ( ii) 31860000000

2nd question

Express the number in usual form

(i) 3.02 ×10 ki power -1

(ii) 4.5 ×10 ki power 4

Solve it