High School

We appreciate your visit to Quick Recall How fast can you answer the following 1 40 times 50 2 400 times 90 3 5 000 times 6 4 70 times. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

Quick Recall: How fast can you answer the following?

1. \( 40 \times 50 = \) ____

2. \( 400 \times 90 = \) ____

3. \( 5,000 \times 6 = \) ____

4. \( 70 \times 60 = \) ____

5. \( 900 \times 60 = \) ____

6. \( 600 \times 80 = \) ____

7. \( 11 \times 400 = \) ____

8. \( 200 \times 90 = \) ____

9. \( 20 \times 30 = \) ____

10. \( 80 \times 500 = \) ____

11. \( 20 \times 120 = \) ____

12. \( 80 \times 60 = \) ____

13. \( 40 \times 800 = \) ____

14. \( 80 \times 110 = \) ____

15. \( 800 \times 70 = \) ____

16. \( 90 \times 80 = \) ____

17. \( 700 \times 120 = \) ____

18. \( 2,000 \times 7 = \) ____

19. \( 80 \times 900 = \) ____

20. \( 400 \times 40 = \) ____

21. \( 50 \times 700 = \) ____

22. \( 400 \times 80 = \) ____

23. \( 900 \times 120 = \) ____

24. \( 500 \times 60 = \) ____

25. \( 70 \times 700 = \) ____

---

What is the value of \( X \)?

a. \( 8,000 + 3,000 = X + 8,000 \)
\( X = \) ____

b. \( 4,000 \times X = 900 \times 4,000 \)
\( X = \) ____

c. \( (1,000 + 7,000) + 50 = 1,000 + (7,000 + X) \)
\( X = \) ____

d. \( (4,000 \times 200) \times 100 = 4,000 \times (200 \times X) \)
\( X = \) ____

e. \( (9,000 + 500) \times 10 = 9,000 \times X + 500 \times X \)
\( X = \) ____

---

Calculate the following:

Let \( a = 2,000 \).

a. \( a + 100,000 = 100,000 + a \)
= ____

b. \( a \times 50 = 50 \times a \)
= ____

c. \( (a + 90,000) + 100,000 = a + (90,000 + 100,000) \)
= ____
= ____

d. \( (a \times 60) \times 3 = a \times (60 \times 3) \)
= ____
= ____

e. \( (a + 40) \times 5 = (a \times 5) + (40 \times 5) \)
= ____
= ____

Answer :

Let's solve each part of the question step by step. This will help you develop a deeper understanding of multiplication and related concepts.

Quick Recall

  1. 40 x 50 =
    [tex]40 \times 50 = 2,000[/tex]
  2. 400 x 90 =
    [tex]400 \times 90 = 36,000[/tex]
  3. 5,000 x 6 =
    [tex]5,000 \times 6 = 30,000[/tex]
  4. 70 x 60 =
    [tex]70 \times 60 = 4,200[/tex]
  5. 900 x 60 =
    [tex]900 \times 60 = 54,000[/tex]
  6. 600 x 80 =
    [tex]600 \times 80 = 48,000[/tex]
  7. 11 x 400 =
    [tex]11 \times 400 = 4,400[/tex]
  8. 200 x 90 =
    [tex]200 \times 90 = 18,000[/tex]
  9. 20 x 30 =
    [tex]20 \times 30 = 600[/tex]
  10. 80 x 500 =
    [tex]80 \times 500 = 40,000[/tex]
  11. 20 x 120 =
    [tex]20 \times 120 = 2,400[/tex]
  12. 80 x 60 =
    [tex]80 \times 60 = 4,800[/tex]
  13. 40 x 800 =
    [tex]40 \times 800 = 32,000[/tex]
  14. 80 x 110 =
    [tex]80 \times 110 = 8,800[/tex]
  15. 800 x 70 =
    [tex]800 \times 70 = 56,000[/tex]
  16. 90 x 80 =
    [tex]90 \times 80 = 7,200[/tex]
  17. 700 x 120 =
    [tex]700 \times 120 = 84,000[/tex]
  18. 2,000 x 7 =
    [tex]2,000 \times 7 = 14,000[/tex]
  19. 80 x 900 =
    [tex]80 \times 900 = 72,000[/tex]
  20. 400 x 40 =
    [tex]400 \times 40 = 16,000[/tex]
  21. 50 x 700 =
    [tex]50 \times 700 = 35,000[/tex]
  22. 400 x 80 =
    [tex]400 \times 80 = 32,000[/tex]
  23. 900 x 120 =
    [tex]900 \times 120 = 108,000[/tex]
  24. 500 x 60 =
    [tex]500 \times 60 = 30,000[/tex]
  25. 70 x 700 =
    [tex]70 \times 700 = 49,000[/tex]

What is the value of X?

Let's find the value of X in each equation step by step.

  1. a. 8,000 + 3,000 = X + 8,000
    \text{Solve for } X:
    [tex]8,000 + 3,000 = X + 8,000[/tex]
    [tex]11,000 = X + 8,000[/tex]
    [tex]11,000 - 8,000 = X[/tex]
    [tex]X = 3,000[/tex]

  2. b. 4,000 x X = 900 x 4,000
    \text{Solve for } X:
    [tex]4,000 \times X = 900 \times 4,000[/tex]
    [tex]X = \frac{900 \times 4,000}{4,000}[/tex]
    [tex]X = 900[/tex]

  3. c. (1,000 + 7,000) + 50 = 1,000 + (7,000 + X)
    \text{Solve for } X:
    [tex]8,050 = 1,000 + (7,000 + X)[/tex]
    [tex]8,050 = 1,000 + 7,000 + X[/tex]
    [tex]8,050 - 8,000 = X[/tex]
    [tex]X = 50[/tex]

  4. d. (4,000 x 200) x 100 = 4,000 x (200 x X)
    \text{Solve for } X:
    [tex]4,000 \times 200 \times 100 = 4,000 \times 200 \times X[/tex]
    [tex]X = 100[/tex]

  5. e. (9,000 + 500) x 10 = 9,000 x X + 500 x X
    \text{Solve for } X:
    [tex](9,500) \times 10 = 9,000X + 500X[/tex]
    [tex]95,000 = 9,500X[/tex]
    [tex]X = 10[/tex]

Calculate the following:

Given [tex]a = 2,000[/tex]

  1. a. a + 100,000 = 100,000 + a
    This property illustrates that addition is commutative:
    [tex]2,000 + 100,000 = 100,000 + 2,000[/tex]
    [tex]102,000[/tex]

  2. b. a x 50 = 50 x a
    This property illustrates that multiplication is commutative:
    [tex]2,000 \times 50 = 50 \times 2,000[/tex]
    [tex]100,000[/tex]

  3. c. (a + 90,000) + 100,000 = a + (90,000 + 100,000)
    Illustrates associative property:
    [tex](2,000 + 90,000) + 100,000 = 2,000 + ( 90,000 + 100,000)[/tex]
    [tex]192,000[/tex]

  4. d. (a x 60) x 3 = a x (60 x 3)
    Illustrates associative property:
    [tex](2,000 \times 60) \times 3 = 2,000 \times (60 \times 3)[/tex]
    [tex](120,000) \times 3 = 2,000 \times 180[/tex]
    [tex]360,000 = 360,000[/tex]

  5. e. (a + 40) x 5 = (a x 5) + (40 x 5)
    This is based on distributive property:
    [tex](2,000 + 40) \times 5 = (2,000 \times 5) + (40 \times 5)[/tex]
    [tex](2,040) \times 5 = 10,000 + 200[/tex]
    [tex]10,200[/tex]

Thanks for taking the time to read Quick Recall How fast can you answer the following 1 40 times 50 2 400 times 90 3 5 000 times 6 4 70 times. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada