小学一年级数学20以内加减法200题

小学一年级数学20以内加减法200题亲爱的小朋友们，欢迎来到20以内加减法的练习小天地！数学是一门很有趣的学科，而加减法就是我们进入数学世界的第一道大门。熟练掌握20以内的加减法，能让我们以后的数学学习变得更轻松哦。下面，就让我们一起来挑战这些题目，看看谁算得又快又准吧！一、20以内加法练习（100题）小朋友们，加法就像把东西合在一起，越合越多。我们先从简单的开始，慢慢挑战更难一点的，相信你们一定能行！（一）不进位加法1.()+()=2.()+()=3.()+()=4.()+()=5.()+()=6.()+()=7.()+()=8.()+()=9.()+()=10.()+()=11.()+()=12.()+()=13.()+()=14.()+()=15.()+()=16.()+()=17.()+()=18.()+()=19.()+()=20.()+()=21.()+()=22.()+()=23.()+()=24.()+()=25.()+()=26.()+()=27.()+()=28.()+()=29.()+()=30.()+()=31.()+()=32.()+()=33.()+()=34.()+()=35.()+()=36.()+()=37.()+()=38.()+()=39.()+()=40.()+()=41.()+()=42.()+()=43.()+()=44.()+()=45.()+()=46.()+()=47.()+()=48.()+()=49.()+()=50.()+()=（二）进位加法进位加法稍微有点挑战，记得当两个数加起来超过10的时候，要向十位进“1”哦！就像我们数小棒，满了10根就捆成一捆。1.()+()=2.()+()=3.()+()=4.()+()=5.()+()=6.()+()=7.()+()=8.()+()=9.()+()=10.()+()=11.()+()=12.()+()=13.()+()=14.()+()=15.()+()=16.()+()=17.()+()=18.()+()=19.()+()=20.()+()=21.()+()=22.()+()=23.()+()=24.()+()=25.()+()=26.()+()=27.()+()=28.()+()=29.()+()=30.()+()=31.()+()=32.()+()=33.()+()=34.()+()=35.()+()=36.()+()=37.()+()=38.()+()=39.()+()=40.()+()=41.()+()=42.()+()=43.()+()=44.()+()=45.()+()=46.()+()=47.()+()=48.()+()=49.()+()=50.()+()=二、20以内减法练习（100题）减法和加法是好朋友，它就像从一堆东西里拿走一部分，看看还剩下多少。做减法的时候，要记清楚哪个是总数，哪个是去掉的部分哦。（一）不退位减法不退位减法比较简单，直接用个位上的数相减就可以了。1.()-()=2.()-()=3.()-()=4.()-()=5.()-()=6.()-()=7.()-()=8.()-()=9.()-()=10.()-()=11.()-()=12.()-()=13.()-()=14.()-()=15.()-()=16.()-()=17.()-()=18.()-()=19.()-()=20.()-()=21.()-()=22.()-()=23.()-()=24.()-()=25.()-()=26.()-()=27.()-()=28.()-()=29.()-()=30.()-()=31.()-()=32.()-()=33.()-()=34.()-()=35.()-()=36.()-()=37.()-()=38.()-()=39.()-()=40.()-()=41.()-()=42.()-()=43.()-()=44.()-()=45.()-()=46.()-()=47.()-()=48.()-()=49.()-()=50.()-()=（二）退位减法退位减法是个小难点，当个位上的数不够减的时候，我们就要从十位“借1当10”，然后再减。就像我们钱不够了，要从存钱罐里拿一张10元的出来换零钱一样。1.()-()=2.()-()=3.()-()=4.()-()=5.()-()=6.()-()=7.()-()=8.()-()=9.()-()=10.()-()=11.()-()=12.()-()=13.()-()=14.()-()=15.()-()=16.()-()=17.()-()=18.()-()=19.()-()=20.()-()=21.()-()=22.()-()=23.()-()=24.()-()=25.()-()=26.()-()=27.()-()=28.()-()=29.()-()=30.()-()=31.()-()=32.()-()=33.()-()=34.()-()=35.()-()=36.()-()=37.()-()=38.()-()=39.()-()=40.()-()=41.()-()=42.()-()=43.()-()=44.()-()=45.()-()=46.()-()=47.()-()=48.()-()=49.()-()=50.()-()=温馨提示小朋友们，做完这些题目是不是很有成就感呀？计算是数学的基础，就像盖房子需要坚实的地基一样。*认真仔细：做每一道题的时候，都要看清楚数字和运算符号，不要因为粗心出错哦。*勤加练习：每天坚持做一些口算练习，就像我们每天都要吃饭一样，数学能力也会慢慢“长大”。*不懂就问：如果遇到不会