150×4+120=720
220-320÷4=140
800÷20×9=36040×20×10=20
300-600÷300=298
4×16÷8=8
150 * 4 + 120 = 600 + 120 = 720
220 - 320 : 4 = 220 - 80 =140
800 : 20 * 9 = 40 * 9 = 360
40 : 20 * 10 = 2 * 10 = 20
300 - 600 : 300 = 300 - 2 = 298
4 * 16 : 8 = 64 : 8 = 8
150×4+120=720
220-320÷4=140
800÷20×9=36040×20×10=20
300-600÷300=298
4×16÷8=8