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(iv) 
3×1000000+4×100000+6×1000+5×100+7×1
Find the difference between the place values of the two nines in 79520986 .
Find the difference between the place value and the face value of 7 in 27650934 .

(iv) 3×1000000+4×100000+6×1000+5×100+7×1 3 \times 1000000+4 \times 100000+6 \times 1000+5 \times 100+7 \times 1 \newlineFind the difference between the place values of the two nines in 7952098679520986 .\newlineFind the difference between the place value and the face value of 77 in 2765093427650934 .

Full solution

Q. (iv) 3×1000000+4×100000+6×1000+5×100+7×1 3 \times 1000000+4 \times 100000+6 \times 1000+5 \times 100+7 \times 1 \newlineFind the difference between the place values of the two nines in 7952098679520986 .\newlineFind the difference between the place value and the face value of 77 in 2765093427650934 .
  1. Calculate Expression Value: Calculate the value of the expression 3×106+4×105+6×103+5×102+7×13\times10^6+4\times10^5+6\times10^3+5\times10^2+7\times1.\newline3×106=30000003\times10^6 = 3000000\newline4×105=4000004\times10^5 = 400000\newline6×103=60006\times10^3 = 6000\newline5×102=5005\times10^2 = 500\newline7×1=77\times1 = 7\newlineAdd them up: 3000000+400000+6000+500+7=34605073000000 + 400000 + 6000 + 500 + 7 = 3460507
  2. Find Nine Difference: Find the difference between the place values of the two nines in 7952098679520986. The first nine is in the ten million place: 9×107=900000009\times10^{7} = 90000000 The second nine is in the hundred place: 9×100=9009\times100 = 900 Subtract the smaller from the larger: 90000000900=8999910090000000 - 900 = 89999100
  3. Find 77 Value Difference: Find the difference between the place value and the face value of 77 in 2765093427650934. The place value of 77 is in the ten million place: 7×10000000=700000007\times10000000 = 70000000 The face value of 77 is just 77. Subtract the face value from the place value: 700000007=6999999370000000 - 7 = 69999993

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