Lesson 24. Multiplying decimals

EXAMPLES;

4.23 × 10 = 42.3

0.0063 × 100 = 0.63

10.9 × 1000 = 10900

EXAMPLE;

6 × 0.1

= 6 × ¹/₁₀

= 6 ÷ 10

= 0.6

EXAMPLE;

0.7 × 0.1

= 0.7 × ¹/₁₀

= 0.7 ÷ 10

= 0.07

EXAMPLE;

20.3 × 0.01

= 20.3 × ¹/₁₀₀

= 20.3 ÷ 100

= 0.203

Tasks to the lesson 24

• Test 1
• Test 2
• Test 3

Other lessons:

• Lesson 1. Writing numbers
• Lesson 2. Adding whole numbers
• Lesson 3. Substracting whole numbers
• Lesson 4. Multiplication table
• Lesson 5. Multiplying whole numbers
• Lesson 6. Division whole nambers
• Lesson 7. Exponentiation
• Lesson 8. Sizes and their measuring
• Lesson 9. Dividing whole numbers with remainder
• Lesson 10. Factors and prime numbers
• Lesson 11. Highest common factor
• Lesson 12. Lowest common multiple
• Lesson 13. Equivalent fractions
• Lesson 14. Transformation of fraction
• Lesson 15. Adding fractions
• Lesson 16. Subtract fractions
• Lesson 17. Multiplying fractions
• Lesson 18. Dividing fractions
• Lesson 21. Eventual decimal fractions
• Lesson 22. Adding decimals
• Lesson 23. Subtracting decimals
• Lesson 25. Dividing decimals
• Lesson 26. Rounding numbers