4. round off
(a) 4.918 m to the nearest 0.1 m,
(b) 9.71 cm to the nearest cm,
(c) $10.982 to the nearest ten cents,
(d) 6.489 kg to the nearest -
- kg.
100

A. 4.9m
b. 10cm
c. $11.00
d. 6kg

Rounding off means estimating precisely

(a) 4.918 m to the nearest 0.1 m

Rounding off to 0.1 m means to estimate it to one decimal placeNow we have to check digit at second decimal place which is 1Rule: If digit is greater or equal to 5 increase one to previous digit

So the answer will be: 4.9 m

(b) 9.71 cm to the nearest cm,

We have to round it off to nearest cm.As the digit after decimal is greater than 59 will be increased by 1

So the answer will be: 10 cm

(c) $10.982 to the nearest ten cents,

We have to round it off to nearest centsAs the digit after decimal is greater than 510 will be increased by 1

So the answer will be: $11

(d) 6.489 kg to the nearest - kg.

We have to round it off to nearest kgAs the digit after decimal is 4 , smaller than 5We will check on to the next digit, 8 is greater than 5previous digit (4) will be increased by 1

So the answer will be: 6.5 kg

I hope it will help you!