Question

owing operation.
(a) Estimate product of 19 x 78 is 20 x 80.
(b) Estimate product of 898 x 785 is 900 x 700.
(c) Estimate difference of 5,673 and 436 is 6000.
d) Estimate sum of 6,290 and 18,986 is 6,000 + 19,000.
.) Estimate difference of 2,08,734 - 57,599 is 2,00,000 - 58,000.
H.F. MATH WB-VI​

Answer 1

Answer:

Step-by-step explanation:

the estimated value of the product is  

900×800=720000