The DAV Class 4 Maths Book Solutions and DAV Class 4 Maths Chapter 3 Worksheet 3 Solutions of Multiplication offer comprehensive answers to textbook questions.
DAV Class 4 Maths Ch 3 WS 3 Solutions
Question 1.
Find the product orally.
(a) 44 × 100 = ________
Answer:
4,400
(b) 96 × 1,000 = ________
Answer:
96,000
(c) 18 × 1,000 = ________
Answer:
18,000
(d) 9 × 40 = ________
Answer:
360
(e) 7 × 400 = ________
Answer:
2,800
(f) 5 × 900 = ________
Answer:
4,500
(g) 9 × 8,000 = ________
Answer:
72,000
(h) 31 × 200 = ________
Answer:
6,200
(i) 42 × 300 = ________
Answer:
12,600 (42 × 3 × 100)
(j) 12 × 8,000 = ________
Answer:
96,000 (12 × 8 × 1000)
(k) 10 × 1,000 = ________
Answer:
10,000 (10 × 1 × 1000)
(l) 7 × 40 = ________
Answer:
280 (7 × 4 × 10)
(m) 7 × 4,000 = ________
Answer:
28, 000 (7 × 4 × 1000)
(n) 9 × 80 = ________
Answer:
720 (9 × 8 × 10)
(o) 8 × 7,000 = ________
Answer:
56,000 (8 × 7 × 1000)
(p) 459 × 1,000 = ________
Answer:
4,59,000 (459 × 1 × 1000)
Question 2.
Fill in the Blanks.
(a) 75 × 1, 000 = ________
Answer:
75,000
(b) 25 × ________ = 2 ,500
Answer:
100
(c) ________ × 1,000 = 68,000
Answer:
68
(d) 33 × ________ = 33, 000
Answer:
1,000
DAV Class 4 Maths Chapter 3 Worksheet 3 Notes
Multiplication (Orally):
In order to multiply a number by 100, 200… 900 we multiply the number by 1, 2, 3…9 respectively and put two zeros on right of the product.
e.g. 3 × 1800 = 3 × 18 × 100 (3 × 18 and two = 5400
Similarly
2 × 7000 = 2 × 7 × 1,000
= 14,000