用简便方法计算3.75×4.8+62.5×0.48，0.76×2.5×4，9.43×99+9.43，13.84-2.9-3.84

（1）0.76×2.5×4

=0.76×（2.5×4）文章源自趣课程-https://www.qukecheng.com/1655.html

=0.76×10文章源自趣课程-https://www.qukecheng.com/1655.html

=7.6文章源自趣课程-https://www.qukecheng.com/1655.html

（2）9.43×99+9.43文章源自趣课程-https://www.qukecheng.com/1655.html

=9.43×（99+1）文章源自趣课程-https://www.qukecheng.com/1655.html

=9.43×100文章源自趣课程-https://www.qukecheng.com/1655.html

=943文章源自趣课程-https://www.qukecheng.com/1655.html

（3）13.84-2.9-3.84文章源自趣课程-https://www.qukecheng.com/1655.html

=13.84-3.84-2.9文章源自趣课程-https://www.qukecheng.com/1655.html

=10-2.9文章源自趣课程-https://www.qukecheng.com/1655.html

7.1

（4）3.75×4.8+62.5×0.48

=3.75×4.8+6.25×4.8

=（3.75+6.25）×4.8

=10×4.8

=48