问题
填空题
计算2.5×7.5+1.3×7.5+45×0.75=______.
答案
2.5×7.5+1.3×7.5+45×0.75
=2.5×7.5+1.3×7.5+4.5×7.5,
=(2.5+1.3+4.5)×7.5,
=8.3×7.5,
=62.25.
故答案为:62.25.
计算2.5×7.5+1.3×7.5+45×0.75=______.
2.5×7.5+1.3×7.5+45×0.75
=2.5×7.5+1.3×7.5+4.5×7.5,
=(2.5+1.3+4.5)×7.5,
=8.3×7.5,
=62.25.
故答案为:62.25.