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Approximations questions

Approximations questions | form one Basic Mathematics

Find Approximations examination questions, form one Basic Mathematics in acaproso.com

# Question
1

Given the number 0.00803, write the number of significant figures.


Mathematical Calculation
2

Approximate 13.95 and 9.72 to the nearest tens, hence evaluate 13.95×9.72 by using the approximated numbers.


Mathematical Calculation
3

The population of Tanzanian citizens is at present 35,986,373. Round off this number of people to the nearest ten thousand.


Mathematical Calculation
4

Round off

  • 260743 to the nearest thousand
  •  0.04261 to three decimal places

Mathematical Calculation
5

Express 0.05473
(i) correct to three (3) significant figures
(ii) correct to three (3) decimal places
(iii) in standard form.


Mathematical Calculation
6

Write 624.3278 correct to

  • Five (5) significant figures
  • Three (3) decimal places

Mathematical Calculation
7

Round off each of the following numbers to one decimal place

L=20.354, M=40.842, N=10.789

Use the results obtained above to find the value of X given that

X=frac{LM}{N}

 


Mathematical Calculation
8

Simplify frac{0.3754 	imes I 7.85 }{0.00042	imes 9.33} and give your answer in four significant figures.
 


Mathematical Calculation
9

Round each of the numbers x = 2.354 , y = 4.843 and z = 1.789 to one decimal place and then use the results obtained to find the value of A to two significant figures given that A=frac{xy}{z}


Mathematical Calculation
10

Find the value of the expression left ( frac{4.75+1.31}{3.13} 
ight )^2giving your answer in three decimal places. By rounding each term of the expression in above to one significant figure, obtain a rough estimate of the expression.


Mathematical Calculation