有两块一样长的木板,钉在一起,如果每块木板长是25厘米,中间钉在一起的长5厘米,现在长木板长多少厘米?6^1g0H3J4R:S.z
6^1g0H3J4R:S.z
算式:提示8Q0J(E1O2x/V1y3G1V(h(E8?8R9a.`6^1g0H3J4R:S.z
口答:现在长木板长0i:`7j9i厘米。6^1g0H3J4R:S.z