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Question
Simplify:
23 × 5
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Solution
23 × 5 = 2 × 2 × 2 × 5
= 8 × 5
= 40
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RELATED QUESTIONS
Express the following number using exponential notation:
343
Evaluate:
`(3^-1÷4^-1)^2`
Evaluate: `(2/3)^3 xx (3/4)^2`
Which is greater:
23 or 32
Complete the table below.
| Sr. No | Indices (Numbers in index form) |
Base | Index | Multiplication form | Value |
| (i) | 34 | 3 | 4 | 3 × 3 × 3 × 3 | 81 |
| (ii) | 163 | ||||
| (iii) | (−8) | 2 | |||
| (iv) | `3/7 xx 3/7 xx 3/7 xx 3/7` | `81/2401` | |||
| (v) | (−13)4 |
The expanded form of p3 q2 is ________________
If 36 = 6 × 6 = 62, then `1/36` expressed as a power with the base 6 is ______.
Fill in the blanks with <, > or = sign.
23 ______ 32
Express the following in exponential form:
3 × 3 × 3 × a × a × a × a
Bacteria can divide in every 20 minutes. So 1 bacterium can multiply to 2 in 20 minutes. 4 in 40 minutes, and so on. How many bacteria will there be in 6 hours? Write your answer using exponents, and then evaluate.
Most bacteria reproduce by a type of simple cell division known as binary fission. Each species reproduce best at a specific temperature and moisture level.
