【文章內容簡介】 39+49+10= 851068= 7147+40= 39+513= 23+1061= 93+5+2= 5312+21= 9861+35= 40+54+3= 96+3+1= 6323+3= 84+015= 58+6+28= 33+2145= 二、列豎式計算57+193=9976+45=55+2266=6622+44=49+4659=986923=833834=92+356=43196=65+3356=59+3238=49+1818=7859+34=4321+22=975323=一、口算8681+2= 7662+20= 80+13+4= 74621= 32+59+6= 35+3420= 14+2731= 9114+7= 4017+11= 24+6653= 34+930= 7124+9= 45+1917= 8232+40= 18+6232= 二、列豎式計算78+2134=992834=62+2233=8453+51=31+4644=7743+23=3411+66=23+3633=5920+33=39+3356=72+2244=94+666=1005935=419+37=32238=一、口算79+111= 61+2274= 702237= 20+4447= 844811= 67+1275= 537+6= 27+3921= 38+610= 7138+14= 93+4+2= 87+10+3= 7222+2= 69+16+6= 84+14+2= 二、列豎式計算67+1943=4618+45=39+2134=4733+65=40+4637=6748+33=782122=43+37+19=5928+41=69+3335=77+2145=59+3444=804923=4539+22=582613=一、口算14+16+30= 6525+7= 6+21+51= 28+561= 80+16+4= 95149= 3411+52= 65+263= 1+86+4= 704+7= 64+21+0= 7819+2= 68+23+8= 472818= 87+7+1= 二、列豎式計算87+9+2=785716=45+5487=7663+45=45+4367=653812=4524+38=