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DecimalsArithmeticElementary schoolabout 0:43

Calculate 30.22 - 41.8: animated lesson

A narrated, step-by-step decimals video lesson with captions. Final answer: -579/50 ≈ -11.58.

SpeedLanguage

Video with a synthetic English voice and captions. Pick another language for subtitles in that language, or open the interactive version.

Video narrated by a synthetic voice (Piper TTS, en_US-ljspeech-high voice (LJ Speech dataset, public domain)); the steps come from our maths engine and the answer was checked independently. Download MP4 (0.3 MB) · Captions (WebVTT)

Steps on screen

1. The problem
Worked example
$30.22-41.8$
2. Step by step
1. $30.22-41.8$
  Read the expression
2. $30.22-41.8 = \frac{-579}{50}$
  Simplify exactly
3. $30.22-41.8 = -\frac{579}{50} \approx -11.58$
  Evaluate using the order of operations (parentheses, exponents, multiplication and division, addition and subtraction)
3. The answer
$-\frac{579}{50} \approx -11.58$
30.22 - 41.8 = -579/50 ≈ -11.58
4. Check
- Decimal value: -11.58

Transcript

The problem. Here is the problem: 30.22 minus 41.8. Evaluate a numerical expression.

Step by step. Read the expression. Simplify exactly. Evaluate using the order of operations (parentheses, exponents, multiplication and division, addition and subtraction).

The answer. So the answer is negative 579 over 50 approximately negative 11.58. Operations are applied in the standard order: parentheses, exponents, multiplication and division from left to right, then addition and subtraction from left to right.

Check. Decimal value: negative 11.58.

About decimals

Add, subtract, multiply and divide decimal numbers, keeping track of the decimal point.

Calculate 30.22 - 41.8: Decimals Step-by-Step Lesson