3.10 + 2.90 + 74 = 80
The answer = 4520
310-20=290
310
6300
130 + 290 + 270 = 690
You can find the answer by dividing 310 by 2, which is 155.
210 + 310 + 410 = 930
310+205 of 310=310+ 20/100*310=310+62=372
290 + 10 = 300
300000 plus 100000 plus 400 plus 290 is equal to 400,690.
310 + 13 = 323
712 + 310 = 1022