1.6吨=千克 4.5升=毫升
+ = 1- = - = 0.9×100=
0.7÷3.5= 0.8×125= + + = + =
① - +
② + -
③6.12+ +2.88+
④1- +
⑤ - + -
⑥ +( - )
一个病人住院期间体温变化情况统计图