Advertisements
Advertisements
Question
Solve the following problem:
Perform the following operation:
1.05 × 10−4 − 9.7 × 10−5
Advertisements
Solution
To perform an addition/subtraction operation, first, the numbers are written in such a way that they have the same exponent. The coefficients are then added/subtracted.
1.05 × 10−4 − 9.7 × 10−5
= 10.5 × 10−5 − 9.7 × 10−5
= (10.5 − 9.7) × 10−5
= 0.80 × 10−5
= 8.0 × 10−6
APPEARS IN
RELATED QUESTIONS
State the rules for deciding significant figures.
Distinguish between accuracy and precision.
Solve the following question:
Round off the following quantity to two significant figures:
0.00254 m
Solve the following question:
Round off the following quantity to two significant figures:
199 g
Solve the following question:
Round off the following quantity to three significant figures:
1.43 cm3
Solve the following question:
Round off the following quantity to three significant figures:
643 cm2
Solve the following question:
Round off the following quantity to three significant figures:
0.039 m
Solve the following question:
Round off the following quantity to three significant figures:
6.398 × 10-3 km
Solve the following question:
Round off the following quantity to three significant figures:
649.85
Solve the following question:
Round off the following quantity to three significant figures:
0.0041962 kg
Solve the following question:
Express the following sum to the appropriate number of significant figures:
319.5 g − 20460 g − 0.0639 g − 45.642 g − 4.173 g
Solve the following problem:
Express the following quantity in exponential terms.
235.4678
Solve the following problem:
Express the following quantity in exponential terms.
70000.0
Solve the following problem:
Give the number of significant figures for the following.
1.230 × 104
Solve the following problem:
Give the number of significant figures for the following.
0.002030
Solve the following problem:
Express the given quantity with or without exponents as the case may be.
0.002030
Solve the following problem:
Write the following in exponential notation:
3,672,199
Solve the following problem:
Write the following in exponential notation:
0.000098
Solve the following problem:
Write the following in exponential notation:
0.00461
Solve the following problem:
Write the following in exponential notation:
198.75
Define Least count.
Define: Least count
Define : Least count
Define Least count.
Define Least count
Define: Least count
