revision

-

 

Multiplication Revision (4th Standard)

Level 1: Easy (2-digit × 1-digit)

1. 23 × 2 = ___
2. 45 × 3 = ___
3. 67 × 4 = ___
4. 81 × 5 = ___
5. 29 × 6 = ___

Level 2: Easy-Medium (2-digit × 2-digit)

6. 12 × 11 = ___
7. 24 × 13 = ___
8. 35 × 14 = ___
9. 46 × 12 = ___
10. 58 × 15 = ___

Level 3: Medium (3-digit × 1-digit)

11. 123 × 2 = ___
12. 245 × 3 = ___
13. 367 × 4 = ___
14. 489 × 5 = ___
15. 512 × 6 = ___

Level 4: Medium-Hard (3-digit × 2-digit)

16. 123 × 12 = ___
17. 234 × 13 = ___
18. 345 × 14 = ___
19. 456 × 15 = ___
20. 567 × 16 = ___

Level 5: Hard (4-digit × 1-digit)

21. 1234 × 2 = ___
22. 2345 × 3 = ___
23. 3456 × 4 = ___
24. 4567 × 5 = ___
25. 5678 × 6 = ___

Level 6: Very Hard (4-digit × 2-digit)

26. 1234 × 12 = ___
27. 2345 × 13 = ___
28. 3456 × 14 = ___
29. 4567 × 15 = ___
30. 5678 × 16 = ___

Answers

1. 46
2. 135
3. 268
4. 405
5. 174
6. 132
7. 312
8. 490
9. 552
10. 870
11. 246
12. 735
13. 1468
14. 2445
15. 3072
16. 1476
17. 3042
18. 4830
19. 6840
20. 9072
21. 2468
22. 7035
23. 13824
24. 22835
25. 34068
26. 14808
27. 30485
28. 48384
29. 68505
30. 90848

Comments

Post a Comment

Popular posts from this blog

Chemistry Final Exams Question Bank and answers

-
Chemistry Revision: Set 1 1. Define Oxidation Number and Reduction Oxidation Number: It is the formal charge that an atom appears to have in a chemical species when all shared electrons are counted as belonging to the more electronegative atom. It is a theoretical tool used to track electron flow. Reduction: In terms of electron transfer, reduction is the gain of electrons by an atom or ion. In terms of oxidation number, it is the decrease in the oxidation state of an element. Reaction: Cu 2+ + 2e - → Cu Example: Copper is reduced as its oxidation number changes from +2 to 0. 2. State and Explain Mendeleev’s Periodic Law Statement: The physical and chemical properties of elements are a periodic function of their atomic masses . Arrangement: Mendeleev arranged the then-known 63 elements in increasing order of at...
Read more

1. Living world

-
Q1. Choose correct option A. Which is not a property of living being?  a. Metabolism        b. Decay  c. Growth              d. Reproduction B. A particular plant is strictly seasonal plant.Which one of the following is best suited if it is to be studied in the laboratory?  a. Herbarium.           b. Museum  c. Botanical garden    d. Flower exhibition C. A group of students found two cockroaches in the classroom. They had a debate whether they are alive or dead. Which life property will help them to do so?  a. Metabolism        b. Growth   c. Irritability          d. Reproduction Q2. Distinguish between botanical gardens,zoological park and biodiversity park with reference to characteristics. Ans:- Sl. No. Botanical Gardens Zoological Parks Biodiversity Parks i. Plants of di...
Read more

Introduction to Analytical Chemistry – Notes

-
Introduction to Analytical Chemistry - Notes Introduction to Analytical Chemistry - Notes 1. Meaning & Scope: Analytical chemistry deals with separation, identification, and quantitative determination of chemical substances. Types of Analysis: Qualitative: Detects presence/absence of elements or ions. Quantitative: Measures the amount of each component. 2. Types of Chemical Analysis: Chemical Methods: Dry tests: Preliminary tests without dissolving the sample. Wet tests: Sample dissolved in solvent for detailed analysis. Qualitative analysis detects cations and anions. Quantitative analysis involves: Gravimetric analysis: Based on mass measurement. Volumetric (Titrimetric) analysis: Based on ...
Read more