14$8×15 =$ $8×8 =$ $13×0.2 =$
$12×0.4 =$ $7×7 =$ $2×1.5 =$
$12.5×0.8 =$ $2.5×0.5 =$ $5×1.6 =$
$25×0.4 =$ $11×10 =$ $40×0.3 =$
$18×5 =$ $20×2.5 =$ $80×3.5 =$
$20×0.18 =$ $0.3×1.3 =$ $3×5.5 =$
$0.3×20 =$ $14×4 =$ $3×0.8 =$
$2×18 =$ $2.9×0.9 =$ $14×0.2 =$
$3.2×5 =$ $51×0.8 =$ $4×2.5 =$
$0.6×13 =$ $0.5×16 =$ $8×12.5 =$
$40×0.21 =$ $23×5 =$ $50×3.2 =$
$8×8.2 =$ $3.5×8 =$ $12×0.5 =$
$12×0.4 =$ $7×7 =$ $2×1.5 =$
$12.5×0.8 =$ $2.5×0.5 =$ $5×1.6 =$
$25×0.4 =$ $11×10 =$ $40×0.3 =$
$18×5 =$ $20×2.5 =$ $80×3.5 =$
$20×0.18 =$ $0.3×1.3 =$ $3×5.5 =$
$0.3×20 =$ $14×4 =$ $3×0.8 =$
$2×18 =$ $2.9×0.9 =$ $14×0.2 =$
$3.2×5 =$ $51×0.8 =$ $4×2.5 =$
$0.6×13 =$ $0.5×16 =$ $8×12.5 =$
$40×0.21 =$ $23×5 =$ $50×3.2 =$
$8×8.2 =$ $3.5×8 =$ $12×0.5 =$
答案
120,64,2.6,4.8,49,3,10,1.25,8,10,110,12,90,50,280,3.6,0.39,16.5,6,56,2.4,36,2.61,2.8,16,40.8,10,7.8,8,100,8.4,115,160,65.6,28,6
解析
$8×15 = 120$;$8×8 = 64$;$13×0.2 = 2.6$
$12×0.4 = 4.8$;$7×7 = 49$;$2×1.5 = 3$
$12.5×0.8 = 10$;$2.5×0.5 = 1.25$;$5×1.6 = 8$
$25×0.4 = 10$;$11×10 = 110$;$40×0.3 = 12$
$18×5 = 90$;$20×2.5 = 50$;$80×3.5 = 280$
$20×0.18 = 3.6$;$0.3×1.3 = 0.39$;$3×5.5 = 16.5$
$0.3×20 = 6$;$14×4 = 56$;$3×0.8 = 2.4$
$2×18 = 36$;$2.9×0.9 = 2.61$;$14×0.2 = 2.8$
$3.2×5 = 16$;$51×0.8 = 40.8$;$4×2.5 = 10$
$0.6×13 = 7.8$;$0.5×16 = 8$;$8×12.5 = 100$
$40×0.21 = 8.4$;$23×5 = 115$;$50×3.2 = 160$
$8×8.2 = 65.6$;$3.5×8 = 28$;$12×0.5 = 6$
$12×0.4 = 4.8$;$7×7 = 49$;$2×1.5 = 3$
$12.5×0.8 = 10$;$2.5×0.5 = 1.25$;$5×1.6 = 8$
$25×0.4 = 10$;$11×10 = 110$;$40×0.3 = 12$
$18×5 = 90$;$20×2.5 = 50$;$80×3.5 = 280$
$20×0.18 = 3.6$;$0.3×1.3 = 0.39$;$3×5.5 = 16.5$
$0.3×20 = 6$;$14×4 = 56$;$3×0.8 = 2.4$
$2×18 = 36$;$2.9×0.9 = 2.61$;$14×0.2 = 2.8$
$3.2×5 = 16$;$51×0.8 = 40.8$;$4×2.5 = 10$
$0.6×13 = 7.8$;$0.5×16 = 8$;$8×12.5 = 100$
$40×0.21 = 8.4$;$23×5 = 115$;$50×3.2 = 160$
$8×8.2 = 65.6$;$3.5×8 = 28$;$12×0.5 = 6$
连一连

长 24 厘米,宽 8 厘米,高 4 厘米。
长 1 米,宽 3 厘米,高 2 米。
长 1.5 米,宽 1 米,高 1.2 米。
教室的门
讲台
铅笔盒
长 24 厘米,宽 8 厘米,高 4 厘米。
长 1 米,宽 3 厘米,高 2 米。
长 1.5 米,宽 1 米,高 1.2 米。
教室的门
讲台
铅笔盒
答案
长24厘米,宽8厘米,高4厘米—铅笔盒;长1米,宽3厘米,高2米—教室的门;长1.5米,宽1米,高1.2米—讲台
解析
根据生活常识和长度单位判断:铅笔盒尺寸较小,对应长24厘米,宽8厘米,高4厘米;教室的门高度和宽度较大,宽3厘米不合理,讲台通常长、宽、高均为米级且宽不会仅3厘米,故长1.5米,宽1米,高1.2米对应讲台,长1米,宽3厘米,高2米数据可能存在误差,结合选项合理匹配,长24厘米,宽8厘米,高4厘米连铅笔盒,长1.5米,宽1米,高1.2米连讲台,剩余长1米,宽3厘米,高2米连教室的门(注:宽3厘米可能为3分米,此处按题目数据匹配)。
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