Question

Q7. Find the appropriate value by rounding off:
(a) 673x7 (b) 3847 + 8348

Answer 1

a) is 4711 b) is 12195

Answer 2

Answer:

a) $673\times7=5000$

b) $3847 + 8348=10000$

Step-by-step explanation:

Given : (a) $673\times7$

(b) $3847 + 8348$

To find : The appropriate value by rounding off

Solution :

Rounding off

→ When the ones digit is greater than 5 (5, 6, 7, 8, or 9) then it round the number up.  

→ When the ones digit is less than 5 ( 0, 1, 2, 3, or 4) then it round the number down.

(a) $673\times7$

$=4711$

When we round off to ones place value = 4710

round off to tenth value = 4700

round off to hundredth value = 5000

Therefore,  $673\times7=5000$

(b) $3847 + 8348$

$=12195$

When we round off to ones place value = 12196

round off to tenth value = 12200

round off to hundredth value = 12200

round to thousand value = 10000

Therefore, $3847 + 8348=10000$