31,880
80 cm = 800 mm
800 is 10 times greater than 80. This is calculated by dividing 800 by 80, which equals 10.
94+94+80+80=348.
80 multiplied by 10 equals 800.
37 plus 43 equals 80.
80 80 + —— 160 160 80 + —— 240
80 + 8 = 88
80 + 50 = 130
The answer is 560. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.
245
200
190