6. 加2 2 4 6 8 10
减2 2 5 3
1
7. 填数,使每条线上的三个数相加都得10。 1
64 325
三 培优训练 1. 算一算。 2+7+0= 9
2+4+3= 9 4 + 1 + 5 = 10 4 − 3 + 9 = 10
8−4−3= 1 7−3−2= 2 1+2+5= 8 10 − 9 + 7 = 8
二 强化巩固
1.
9
72 7 + 2=9 9 − 7=2 9 − 2=7
10
46 4 + 6 = 10 10 − 4 = 6 10 − 6 = 4
2. 看谁算的都对。 3 + 2 = 5 2 + 7 = 9 10 − 9 = 1 3 + 6 = 9 7 − 4 = 3 8 − 4 = 4 6 + 4 = 10 10 − 7 = 3 6 + 3 = 9 5 + 5 = 10 1 + 8 = 9 8 + 2 = 10 9 − 4 = 5 7 + 3 = 10 9 − 8 = 1 5 − 5 = 0
►1Our destiny offers not the cup of despair, but the chalice of opportunity. ►So let us seize it, not in fear, but in gladness. · 命运给予我们的不是失望之酒,而是机会之杯。 因此,让我们毫无畏惧,满心愉悦地把握命运
►If I had not been born Napoleon, I would have liked to have been born Alexander. 如果今天我不是拿破仑的话,我想成为亚历山大。