六 年级计算能力挑战赛(一) 1、口算: 23415×5= ×6 = ×5 = ×10 = ×8= 11131961252343×12= ×3 = ×6 = ×9 = ×5 = 56721101143115×12 = ×15= 51× = ×25 = 24×= 2516173518251413321557×= ×= ×= 15× = ×56 = 158413×512= 38×415 = 528×5 = 527×120= 49×38= 36×34= 2、计算 3214×9×14 14154×25×2 1520116 ×21 ×5 1315 ×726 ×5 ( 392845286856×1225= 1021×34211235 = 55×35= 3×14= 2513131426×15= 63×39= 52528+5= 8-5= 2536×2740= 1825+59= 1825×59= 527+120= 1639×1332= 40-23151713510= 34×30= 6+8-12= 34×89= 1112×36121= 6495×19532= 8×12= ×574318= 12×7= 18×8= 156×3= 42×810×52 5113111033×12×6 5×13×3 425×54×10 265×1213×1111213 4×11×6 34×59×215 34×23×25 533 ×22×12 58 +1112 )×24 9175414 ×18 ×14 (6 -9 )×36 27 本文来源:https://www.wddqw.com/doc/6171036fa22d7375a417866fb84ae45c3b35c2fb.html