Write 0.5 billion in digits only

The product of two numbers is 32. if their difference is 14, find the numbers

The product of two numbers is 144. If their HCF is 4, what is their LCM?

The product of two numbers is 48. if their sum is 14, find the two numbers.

Find the least number which will be used to multiply 108 to make it a perfect square.

Write $$1\frac{1}{4}$$ million in words

The number K is a prime factor less than 10. If K is also a factor of 42 and 45, what number does K represent?

Two light houses are on a street. The first one flashes every 8 secs. The second done flashes every 15 secs. How long will it take for both of them to flash together again?

Three guards blow their whistles at intervals of 10 mins, 15 mins and 20 mins respectively. If they blow together at 11:45pm, at what time are they expected to blow together again?

845 is __________ when rounded to the nearest hundred.

Which of the following numbers would round to 435,700,if the number is rounded to the nearest hundreds?

If the digit being rounded off is followed by number 0, 1, 2, 3, 4, so _____________ the digit.

If the digit being rounded off is followed by number 5, 6, 7, 8, 9, so _____________ the digit.

What is 78.5 rounded to one significant figure?

Round 0.010229 to four significant figures

Round 1047.78 to three significant figures.

Round 345 000 to 1 s.f