解答问题。3x'j7{/J0[3P'r6P*j
(1)一根绳子长20米。剪去9米后,还剩多少厘米?3x'j7{/J0[3P'r6P*j
算式:提示.g,Z8V:c8q;W2S3x'j7{/J0[3P'r6P*j
答:还剩(V'R.I厘米。3x'j7{/J0[3P'r6P*j
(2)一根绳子剪去9米后还剩11米,这根绳子原来有多长?3x'j7{/J0[3P'r6P*j
'r7?-k+F.r2b8z(厘米)3x'j7{/J0[3P'r6P*j
答:这根绳子原来有/E5K.Q/{'X/v厘米。3x'j7{/J0[3P'r6P*j
(3)一棵7厘米高的向日葵,经过几天的生长,长到32厘米,向日葵长了多少厘米?3x'j7{/J0[3P'r6P*j
算式:提示,L;d-A4l.n3x'j7{/J0[3P'r6P*j
答:向日葵长了4x3}3w,x+v5C0e;[厘米。3x'j7{/J0[3P'r6P*j