SCIENTIFIC NOTATION ON A CALCULATOR WORKSHEET

About "Scientific notation on a calculator worksheet"

Scientific notation on a calculator worksheet :

Worksheet on scientific notation on a calculator is much useful to the students who would like to practice problems on writing numbers in scientific notation.

Scientific notation on a calculator worksheet - Questions

1.  Simplify the expression given below using calculator and write your answer in scientific notation.

(4x10⁵) + (0.1x10⁷)

(3.2 x 10) x (26.7 x 10³)

3. The table shows the approximate areas for three continents given in square meters. What is the total area of these three continents ? Write the answer in scientific notation using more appropriate units.  Scientific notation on a calculator worksheet - Answers

Question 1 :

Simplify the expression given below using calculator and write your answer in scientific notation.

(4x10⁵) + (0.1x10⁷)

Step 1 :

Find 4x10⁵ + 0.1x10

Enter 4E5 + 0.1E7 on your calculator.

Step 2 :

Write the results from your calculator : 1.4E6.

Write this number in scientific notation :

(4x10⁵) + (0.1x10⁷)  =  1.4 x 10

Question 2 :

Multiply :

(3.2 x 10) x (26.7 x 10³)

Step 1 :

Find (3.2 x 10) x (26.7 x 10³)

Enter 3.2E5 x 26.7E3 on your calculator.

Step 2 :

Write the results from your calculator : 8.544E9.

Write this number in scientific notation :

(3.2 x 10) x (26.7 x 10³ =   8.544 x 10

Question 3 :

The table shows the approximate areas for three continents given in square meters. What is the total area of these three continents ? Write the answer in scientific notation using more appropriate units. Step 1 :

Find 4.4 x 10¹³ + 3.02 x 10¹³ + 1.04 x 10¹³

Enter 4.4E13 + 3.02E13 + 1.04E13 on your calculator.

Step 2 :

Write the results from your calculator : 8.46E13.

Write this number in scientific notation :

8.46 × 10¹³ square meter

Step 3 :

Since square kilometers is more appropriate, lets convert square meters into square kilometers.

Write this number in scientific notation :

Because 1 km = 1,000 m, we have

1 km²  =  1000² m²

1 km²  =  10 m²

So, to convert square meters into square kilometers, we have to divide by 10⁶.

8.46 × 10¹³   =  (8.46 × 10¹³ /  10⁶) k

8.46 × 10¹³   =  8.46 × 10⁷ k

Hence, the total area of these three continents is

8.46 × 10 square kilometers After having gone through the stuff given above, we hope that the students would have understood how to use calculator to write a number in scientific notation.

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