1. (2019五下·赤水期末) 计算题，注意运用简便运算。

①22.36+25.82+77.64-15.82

②22.8×98+45.6

③4.58×25.1+45.8×6.35+0.458×114

④63÷3.7+11÷3.7

⑤41.2×8.1+11×1.25+53.7×1.9

⑥4.8×7.8+78×0.52

⑦99×86.2+86.2

⑧999.9×0.28-0.6666×370

⑨23.56-(2.017-0.44)+2.017

⑩0.25×0.2×16×1.25