144 + (-108)
Answer
36
Calculation Steps:
144 + -108
=+ (144 - 108)
=+ (144 - 108)
=+ (36)
=36
Calculation Processes:
Single calculation
1
144 + -108
Exercise
144 + -108
Solution Process
Add two numbers with different symbols and unequal absolute values, take the symbol of the added number with the larger absolute value, and subtract the smaller absolute value from the larger absolute value.
144 + -108 = +(144 - 108).
Calculation Details
144 is a positive number, -108 is a negative number.
Calculate the addition of positive and negative numbers, and determine the symbol of the calculation result by comparing the absolute value, In this calculation (the absolute value of 144) is greater than (the absolute value of -108), The addition result is positive(+).
Subtract the smaller absolute value from the larger absolute value, The calculation result is equal to +(144 - 108).
Continue the calculation: +(144 - 108).
2
144 + -108
Exercise
+(144 - 108)
Solution Process
In mathematical operations, if there are parentheses, the contents inside the parentheses are calculated first. If there are different parentheses, the contents inside the small parentheses are calculated first, then the contents inside the square brackets, then the contents inside the curly brackets, and finally the contents outside the parentheses.
Perform the calculation inside the brackets: 144 - 108.
3
144 + -108
Exercise
144 - 108
Solution Process
144 and 108 are all positive numbers.
When subtracting two positive numbers, you can directly subtract number to subtract from the number being subtracted and keep the sign unchanged.
Answer
36
Vertical
HundredsTensOnes-1140148036
Calculation Details
144 and 108 are all positive numbers.
When subtracting two positive numbers, you can directly subtract number to subtract from the number being subtracted and keep the sign unchanged.
1
In vertical addition or subtraction, ensure that digits with the same place value are aligned.
1
The same digits must be aligned, usually starting from the ones digit; when calculating addition and subtraction of decimals, the decimal points must be aligned first.
2
Align the Ones digits 4 and 8.
HundredsTensOnes-114048
3
Align the Tens digits 4 and 0.
HundredsTensOnes-114048
4
Align the Hundreds digits 1 and 1.
HundredsTensOnes-114048
2
In addition and subtraction, start calculations from the rightmost digit.
1
In math addition and subtraction, start at the last digit and work your way to the left, digit by digit, until the calculation is complete.
2
Calculate 4 - 8 in the Ones place. Since 4 is less than 8, it is not enough to subtract. We need to borrow 1 from the higher place value and treat it as 10. After borrowing, the Ones digit becomes 14. Next, calculate 14 - 8, the result is 6. Write the result 6 below the vertical form.
HundredsTensOnes-11401486A more intuitive calculation method is to use a number line, where the point representing a number on the number line increases from left to right and decreases from right to left. Therefore, subtraction can be performed by moving to the left along the number line.1.Calculate 4 - 8 in the Ones place. Since 4 is less than 8, it is not enough to subtract. We need to borrow 1 from the higher place value and treat it as 10. After borrowing, the Ones digit becomes 14.The point representing 4 on the number line is moved 10 units to the right along the number line, and the result is 14.2.Next, calculate 14 - 8, the result is 6.Continue moving 8 units to the left along the number line, and the result is 6.-9-8-7-6-5-4-3-2-10123(1)456789101112(2)13141516171819(1)The point representing 4 on the number line is moved 10 units to the right along the number line, and the result is 14.(2)Continue moving 8 units to the left along the number line, and the result is 6.
3
From the Tens place 4, 1 was borrowed, leaving 3. Next, calculate 3 - 0, the result is 3. Write the result 3 below the vertical form.
HundredsTensOnes-114014836A more intuitive calculation method is to use a number line, where the point representing a number on the number line increases from left to right and decreases from right to left. Therefore, subtraction can be performed by moving to the left along the number line.1.From the Tens place 4, 1 was borrowed, leaving 3.The point representing 4 on the number line is moved 1 units to the left along the number line, and the result is 3.2.Next, calculate 3 - 0, the result is 3.Continue moving 0 units to the left along the number line, and the result is 3.012(1)3456789(1)The point representing 4 on the number line is moved 1 units to the left along the number line, and the result is 3.(2)Continue moving 0 units to the left along the number line, and the result is 3.
4
Calculate the Hundreds digit 1 - 1, the result is 0. Write the result 0 below the vertical form.
HundredsTensOnes-1140148036A more intuitive calculation method is to use a number line, where the point representing a number on the number line increases from left to right and decreases from right to left. Therefore, subtraction can be performed by moving to the left along the number line.1.Calculate 1 - 1, the result is 0.The point representing 1 on the number line is moved 1 units to the left along the number line, and the result is 0.-5-4-3-2-1(1)0123456(1)The point representing 1 on the number line is moved 1 units to the left along the number line, and the result is 0.
3
When 0 is in the highest place and has no actual value, it can be omitted.
4
Calculate 144 - 108. The result is 36.
4
144 + -108
Exercise
144 + -108
Solution Process
Perform the calculation inside the brackets: 144 - 108, The result is 36.
Since there is a positive sign outside the parentheses, the result is +36. Following mathematical conventions, the positive sign can be omitted, so it is written as 36.
Answer
36
5
Summarize
Finally, 144 + (-108) equals 36.