A student adds 1.347 + 3.68 on a calculator and gets 50.27 as the answer. Without adding the number yourself, is this the right answer? Please explain your reasoning.
The student is adding 1.347 and 3.68 which is the same as 3.680
The result cannot be 50.27 because 7 is the third digit after the decimal point, not the second. Also 8 + 4 = 12 which implies that 2 is the second digit after the decimal point in the result not the first. Again, 6 + 3 + 1 = 10 making 0 the first digit after the decimal and the number before the decimal is 5.
Apart from this, the student is adding small numbers like 1.347 and 3.68, the answer is a number around 5 not a large number like 50.
The result the students gets by adding 1.347 and 3.68 using a calculator is wrong.
Without adding the numbers itself, 1.347 + 3.68 can not equal 50.27 because you have to line up the decimals before you add. Furthermore, if you rounded the numbers to the nearest whole number, 1+4=5. The answer should be around 5 not 50.27.
No because there is no way you can add 1 and 3 and end up with 50