三年级数学上册《图形周长》必考习题

三年级数学上册《图形周长》必考习题

  • 简介

    12+7+12+7 14+16+19+18 78+98+75 =19+12+7 =30+19+18 =176+75 =38 (厘米) =67 (分米) =251(厘米) (7+5)X2+2x2 (5+1)X2 (10+8)X2+3x2 =12x2+4 =12x2 =18x2+6 =28(厘米) =24 (m) =42 (米) (7+5)X2 16X4+4X4 5X3X4 =12X2=24 (分米) =64+16=80 (厘米) =15x4=60 (厘米) (30+25) X2 (20+40) X 2 (5+3+5)X2 =55X2 =60x 2 =13X2 =110 (厘米) =120 (厘米) =26 (厘米)

三年级数学上册《图形周长》必考习题