1-5的减法课件
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课件22张PPT。减法
521 32 2213
24 1344115还剩多少个气球？鱼 ! !3–1 = 23–2 = 13 – 3 = 0 22想加算减，因为3+2=5，所以5-3=241谁最棒？5 – 1 =（ ）4234 – 1 = 35 – 2 =3小牛、小象、小狗、小马找妈妈。4 - 2= 5-1=2+3=4-4=52405 – 1 = 45 – 1 = 45 – 2 = 35 – 3 = 25 – 1 = 45 – 2 = 35 – 1 = 45 – 2 = 35 – 3 = 25 – 4 = 15 – 1 = 45 – 2 = 35 – 3 = 25 – 4 = 15 – 5 = 0加油加油运动会3+2=4-3=5-1=2+2=3-2=5-5=514140
521 32 2213
24 1344115还剩多少个气球？鱼 ! !3–1 = 23–2 = 13 – 3 = 0 22想加算减，因为3+2=5，所以5-3=241谁最棒？5 – 1 =（ ）4234 – 1 = 35 – 2 =3小牛、小象、小狗、小马找妈妈。4 - 2= 5-1=2+3=4-4=52405 – 1 = 45 – 1 = 45 – 2 = 35 – 3 = 25 – 1 = 45 – 2 = 35 – 1 = 45 – 2 = 35 – 3 = 25 – 4 = 15 – 1 = 45 – 2 = 35 – 3 = 25 – 4 = 15 – 5 = 0加油加油运动会3+2=4-3=5-1=2+2=3-2=5-5=514140