7 小数的初步认识
(1)0.720,0.702,0.712
< <
(2)8.09,8.91,9.08,9.78
< < <
(3)3.87、4.53、3.45、3.78、4.35
< < < < .
在横线里填上“>”、“<”或“=”.
200﹣5.24﹣24.76 200+(5.24+24.76)
(6.3+2.7)+9.5 5.9+(6.3+2.7)
23.17+3.56+45.83 23.17+45.83+3.56.