Question

ugrul estimate.
EXERCISE 1.3
(1) Estimate :
(a) 730 + 998
(c) 12,904 + 2,888
(b) 796 - 314
(d) 28,292 -21,496
(a) 439 + 334 + 4,317
(c) 8325-491
(b) 1,08,734 - 47,599
(d) 4,89,348 - 48,365
Make ten more such examples of addition, subtraction and estimation of their outcome.
2) Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate
(by rounding off to nearest tens):
Make four more of such examples.​

Answer 1

Answer:

brainlist....... 7344+123 654+98766

Answer 2

1)a) 730+998 =1728

b)12,904 + 2,888 =15,792

c)796-314 =482

d)28,292 -21,496 =6,796

e)439 + 334 + 4,317 =5,090

f)8325-491 =7,834

g)1,08,734 - 47,599 =61,135

h)4,89,348 - 48,365 =4,40,983

10 examples of addition and substraction

i)346,582 + 456,739 =803,321

ii)5463-46456+75678 =34,685

iii)687-456-345 =−114

iv)45+56-51+98-23+50-37 =138

v)564-38 =526

vi)7340+9473 =16,813

vii)3026+2689 =5,715

viii)6774+7826 =14,600

ix)1762+3722 =5,484

x)9778+1226 =11,004

xi) 4558➡3000

xii) 8704➡7000

xiii)5536➡4000

xiv)9798➡9000