In general, numbers are not compatible or otherwise in isolation. They are compatible in the context of other numbers. Two (or more) numbers are compatible if their sum (or other combination) is a number which YOU find easy to work with. As you acquire more experience, you may find that more and more numbers become compatible.
330 + 60 = 390
compatible numbers is just like to round or estimate a number. Ex: 44 the compatible number is to 40. because if the number less than five is rounded to the nearest ten (down). Ex: 56 the compatible number is 60. why? because a number greater than 5 is rounded up.
It is a division problem. There are 60 minutes in an hour. 900/60 = 15. There are 15 hours in 900 minutes.
59
this is simple division as both numbers can be divided by 10 to simplify this math problem. 2700 divided by 60 is the same as 270 divided by 6. Long division or short division and then you get 45.
In general, numbers are not compatible or otherwise in isolation. They are compatible in the context of other numbers. Two (or more) numbers are compatible if their sum (or other combination) is a number which YOU find easy to work with. As you acquire more experience, you may find that more and more numbers become compatible.
300 + 60
60
330 + 60 = 390
Compatible number is one that is near the actual number, but is easier to use for addition, subtraction, multiplication, or division. In other words, it is easy to use for estimating the answer to an arithmetic problem. Example: 38 + 23 A compatible number for 38 might be 40 A compatible number for 23 might be 20 (or 25) The sum of the compatible numbers would be 60 (or 65). So you know the answer will be near there. If you choose 40 and 20, you know that one of your compatible numbers is a little too high, and the other is a little too low. So your estimate of the answer (40+20=60) will be pretty close. (Your estimators are high by 2 and low by 3, so you know your answer is low by 1. It is really 61, not 60.) If you choose 40 and 25, you know that both of your compatible numbers are a little too high, so your answer will be a little more high. As it turns out, both "estimates" are high by 2, so the estimated answer (65) is high by 2+2=4. The actual result is 61 = 65-4
6
compatible numbers is just like to round or estimate a number. Ex: 44 the compatible number is to 40. because if the number less than five is rounded to the nearest ten (down). Ex: 56 the compatible number is 60. why? because a number greater than 5 is rounded up.
It is a division problem. There are 60 minutes in an hour. 900/60 = 15. There are 15 hours in 900 minutes.
59
no
Short division is a method of dividing numbers where the quotient is written above the division line, the divisor is written outside the division box, and the dividend is written inside the box. The division is done digit by digit, from left to right, to find the quotient and remainder.