1. (2022二上·椒江期末) 口算

63+36=          35-19=          56-7=           60-6×9=

100-60=          46+8=          44+20=         55-8+2=

73+17=           5×4=           7×6=           2+3×4=

47-32=           53-14=          32+57=         89-（60+7）=

9×7=             35+43=          76+15=         7-0×7=

66-18=            75-57=          8×6=           8×7-6=