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They are numbers that "work well" or are friendly with each other.
In a problem like 16 + 4+8 + 12 + 5, you could say 16 + 4 is 20 and 8+ 12 is 20. 20 + 20 is 40 and with the other five you would just add it so it would be:
16+4=20
8+12=20
20+20=40
40+5=45
So they are numbers that most people would find it easy to add, subtract, or divide.
232 ÷ 11 may be hard to do in your head.
We can use the compatible number 12 and 240 since that division is easy to
do in your head. 12 goes into 240 20 times. The easy way to do this in your head is to note that 12 goes into 120 10 times so it goes into 240 twenty times.
This gives us an estimate of the answer when we consider that both number were increased by 1.
Say you wanted to multiply 288 by 415 . We note that the compatible numbers for 288 and 415 are 300 and 400
In the addition example, we group certain numbers first and that makes addition easy.
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What are the compatible numbers for 673 and 85?
compatible numbers for 673 by 85
What are the compatible numbers for 536 and 23?
525 and 25
What is the compatible numbers of 84-36?
85-35=50
What is compatible numbers for 2964 divided by 73?
40.6027
By using compatible numbers estimate 287 plus 491?
280 + 500 = 780
What are the compatible numbers for 673 and 85?
compatible numbers for 673 by 85
What are compatible numbers of 380 and 445?
What is the answer to the compatible numbers for 380+445
What is the definition of compatible numbers?
compatible numbers are numbers that are a like or can compared like fact familys!
Is 60 a compatible number?
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.
What is 568-342 using compatible numbers?
568-342 using compatible numbers = 226
How do you estimate fractions using compatible numbers?
Estimate 43/81 by using compatible numbers
How does one estimate a quotient using compatible numbers?
The best way to estimate a quotient using compatible numbers is to first understand how compatible numbers work. They are numbers that are close in value to the actual numbers and are easily added, subtracted or divided.
What is the difference between a compatible number and rounding numbers?
rounding numbers is to nearest ten or hundred and compatible numbers are when you can do nearest 5
What does compatibly numbers mean?
What does compatible numbers mean?
What is 535.6 divided by 35 using compatible numbers?
535.6 divided by 35 using compatible numbers = 15.302857142857144
What is the estimated weight and compatible numbers for 9.4 and 62.6?
estimated weight 72 compatible numbers 9 and 63
What is the compatible number of 77?
Compatible numbers are numbers that are close in value to the actual numbers and easy to add, subtract, multiply, or divide mentally.So a logical compatible number for 77 would be 80.
