Question

The estimated product of 432 and 75 by rounding off the multiplicand to the nearest 100 and multiplier to the nearest 10 is _________. (First round off the numbers as indicated)​

Answer 1

Answer:

432-400

75-80

400×80=32000 answer

Answer 2

Solution :-

since a * b = b * a ,

Case 1) :- Taking 432 as multiplicand .

So,

→ Rounding off 432 to the nearest 100 = Ten's plage digit is 3 which is less than 5 = 400

→ Rounding off 75 to the nearest 10 = unit plage digit is 5 which is equal to 5 = 80

then,

→ Required product = 400 * 80 = 32000 (Ans.)

Case 2) :- Taking 75 as multiplicand .

So,

→ Rounding off 75 to the nearest 100 = Ten's plage digit is 7 which is greater than 5 = 100

→ Rounding off 432 to the nearest 10 = unit plage digit is 2 which is less than to 5 = 430

then,

→ Required product = 430 * 100 = 43000 (Ans.)

Learn more :-

(3) निम्न के स्थानीय मान लिखिये-

(अ)43.24

(स)884.20

(ब) 534.34

(द) 178.34

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