0.77+0.33= ×4+4× = ×0.3= + =
﹣ ×0= × = ÷ = 8× ÷8× =
①65+35×0.2
② × + ÷
③15.28﹣3.99﹣9.01
④13× × ×
⑤ × + ×
⑥75× +0.75×26﹣