Question

Give a rough estimate (by rounding off to the nearest hundreds) and also a cioser estimate
by rounding off to the nearest tens) for the following:
a. 215 + 395 + 4,776
b. 468 + 1,239 + 5,694
c. 9,543 - 729
d. 86,786 – 74,834
Estimate the following products to the
a. 62 x 49 (nearest tens) b. 679 x 113 (nearest hundreds) C. 4005 X 8647 (neares
S
1. Consider a number 2,64,315. By changing the position of any two digits m
number smaller than the given number such that the difference between the orig
and the new number is the maximum.
2. If we round off a number to the nearest thousand, which is the smallest nu
rounded off to 4000?
3. How many numbers can be rounded off to 40,000, when rounded off to the n
thousand?
ba
4. Can you find the value of 'a' and 'b', if X aa
a00а​

Answer 1

Answer:

Step-by-step explanation:

The simple way of doing it is use your brain