Advertisements
Advertisements
Question
Determine the following products by suitable rearrangements:
625 × 20 × 8 × 50
Solution
625 × 20 × 8 × 50
= (20 × 50) × 8 × 625
= 1000 × 8 × 625
= 8000 × 625
= 5000000
APPEARS IN
RELATED QUESTIONS
State true or false:
If a and b are any two whole numbers, then a + b = b + a
Consider two whole numbers a and b such that a is greater than b.
(i) Is a – b a whole number ? Is this result always true ?
(ii) b-a a whole number ? Is this result always true ?
Write the inverse, if possible for subtraction of whole numbers ?
Show that a whole number divided by 0 is not defined.
give an example of the above.
Fill in the blank:
336 – (888 + 888) = ______
Write the three whole numbers occurring just before 10001.
Write down three consecutive whole numbers just preceding 7510001.
Fill in the blanks to make the following a true statement:
864 + 2006 = 2006 + ......
Fill in the blanks to make the following a true statement:
53501 + (574 + 799) = 574 + (53501 + ......)
Determine the sum given below using suitable rearrangement.
3259 + 10001 + 2641 + 9999
Write (T) for true and (F) for false for the following statement:
The sum of two even numbers is an even number.
Perform the following subtraction. Check your result by the corresponding addition.
6237 − 694
Find the difference: 13006 − 9999
A dealer purchased 139 VCRs. If the cost of each set is Rs. 24350, find the cost of all the sets together.
Fill in the blanks.
...... is a whole number which is not a natural number.
Match the following columns on whole numbers:
| Column A | Column B |
| (a) 137 + 63 = 63 + 137 | (i) Associativity of multiplication |
| (b) (16 × 25) is a number | (ii) Commutativity of multiplication |
| (c) 365 × 18 = 18 × 365 | (iii) Distributive law of multiplication over addition |
| (d) (86 × 14) × 25 = 86 × (14 × 25) | (iv) Commutativity of addition |
| (e) 23 × (80 + 5) = (23 × 80) + (23 × 5) | (v) Closure property for multiplication |
LCM of two or more numbers may be one of the numbers.
If the HCF of two numbers is one of the numbers, then their LCM is the other number.
______ is a factor of every number.
The next number in the pattern –62, –37, –12 is ______.
