Maths 1 Mark Question

4,375

100000 - 500000 = 50000

5,07,406

70,053

4505 + 27807 + 21397 = 53709
In 53709 the last three digits i.e., 709 is greater than 500.
Hence, 1 will be added to the 4th last digit and the last three digits will become zero.
After rounding to nearest thousand we will get 54000.

8,100

Rs. 700

800 - 300 = 500

8000 - 500 = 7500

X¯IX

8 × (9 - 4)

The number obtained on reversing 279 = 972
Difference = 972 - 279 = 693
Thus, the difference between 279 and that obtained on reversing its digits is 693.

One million, forty-seven thousand, five hundred and nine

Two million five hundred forty three thousand eight hundred seventy six.

7,42,900

70009

700 ÷ 20 = 35

1 crore = 1000000 ten

Seven hundred million four hundred thirty thousand eighty four.

98,708,004

735,899 or Seven hundred thirty five thousand eight hundred ninety nine.

IV¯CCI

The smallest three-digit number with unique digits is 102.

CCCXIX

4,035,672 or Four million thirty five thousand six hundred seventy two.

10000 + 2000 + 300 + 40 + 5

XCV

1 Lakh = 100 thousand

XXXIII

Five crore fifty lakh fifty thousand fifty.

4,304,084 or Four million three hundred four thousand eighty four.

1 crore = 1000 ten thousand

50000000 + 7000000 + 8000 + 90 + 4 = 5,70,08,094

102394 > 99887

Four lakh five thousand forty five.

80

KKKCKVI

Twenty five crore five lakh five thousand five hundred.

Place value of 4 = 4 × 10,000 = 40,000

8,000

8,23,514 or Eight lakh twenty three thousand five hunderd fourteen.

43,69,000

1300km

9391

1,81,888, 1,90,909, 18,08,088, 18,08,090, 1,60,60,666

30,11,001

900 × 800 = 720000