Question

Perform each of the following calculations, and give an answer with the correct number of decimal places:

a.$5.08g+25.1g$

b.$85.66cm+104.10cm+0.025cm$

c.$24.568mL-14.25mL$

d.$0.2654L-0.2585L$

Short answer

(a)The required answer is, $30.2g$

(b)The required answer is, $189.79cm$

(c) The required answer is, $10.32mL$

(d) The required answer is, $0.0069L$

Step-by-step solution

Part (a) Step 1: Given information 

We need to find out the value of$5.08g+25.1g$with correct no. of decimal places

Part (a) Step 2: Simplify

We know that,

The calculation of $5.08g+25.1g$is, $30.18g$

But the lowest of decimal places is one

So, the Answer is rounded off to the tenths place

Therefore, the required answer is,$30.2g$

Part (b) Step 1: Given information  

We need to find out the value of$85.66cm+104.10cm+0.025cm$with correct no. of decimal places

Part (b) Step 2: Simplify 

We know that,

The calculation of $85.66cm+104.10cm+0.025cm$is, $189.785cm$

But the lowest of decimal places are two

So, the Answer is rounded off to the hundredths place

Therefore, the required answer is,$189.79cm$

Part (c) Step 1: Given information  

We need to find out the value of$24.568mL-14.25mL$with correct no. of decimal places

Part (c) Step 2: Simplify 

We know that,

The calculation of $24.568mL-14.25mL$is, $10.318mL$

But the lowest of decimal places are two

So, the Answer is rounded off to the hundredths place

Therefore, the required answer is,$10.32mL$

Part (d) Step 1: Given information 

We need to find out the value of$0.2654L-0.2585L$with correct no. of decimal places

Part (d) Step 2: Simplify 

We know that,

The calculation of $0.2654L-0.2585L$is, $0.0069L$

But the lowest of decimal places are four

So, the Answer is rounded off to the ten-thousandths place

Therefore, the required answer is, $0.0069$