Решение #
1 36:4 x 3.4 = 30.6
2 39 - 44.3 + 7 = 1.7
3 4 x 85 - 40 = 300
4 (290 + 580) x 3 = 2580
Mistake 4. Two hundred and ninety added to five hundred eighty gives us eight hundred and seventy. Then we multiply it by three and get two thousand six hundred and ten.
It should be written like (290 + 580) x 3 = 2610