计算.(1)8-15×57÷4 (2)9.6÷3.2+5.1×4 (4)60×
计算. (1)8-15×57÷4 | (2)9.6÷3.2+5.1×4 | (3)49×(310÷35+25) | (4)60×(34-23+25) |
=8-855÷4,
=8-213.75,
=-205.75;
(2)9.6÷3.2+5.1×4,
=3+20.4,
=23.4;
(3)49×(310÷35+25)
=49×(
62 |
7 |
=49×
62 |
7 |
=434+1225,
=1659;
(4)60×(34-23+25),
=60×36,
=2160.

