人教版四年级上册数学《加减法口算》练习.doc

1、1.5-0.5 =1-0.9=2.3 + 0.6=0.9 + 0.8=1-0.3=3.4-1.5 =1.9-0.9=3.5-2.4=3.5+4.2=6-0.5 =0.8+0.7=4.5-3 =1.5 0.5=1 - 0.9=0.9 + 0.8=1.9 - 0.9=0.36 + 0.64=2.5+0.9二0.39+0.15=加减法口算0.36+0.64=2.7-0.4=7.8-1.1 =2.3 + 0.6=0.96 - 0.3=1.2-0.5 =3-1.4=3.5-2.4二8.65 6.31 =7.8+1.6=4.7-2.8=7.2-6.45 =15-0.48 =6.77-1.78=3.45+5

2、.75=3.40+58.20=49.80+49.20=5.7 3 =4.9 - 1.7=1.34 + 0.8=111.6-99=7.8+21.02=5.6-1.42=12.5+0.9=4.5-2.83=3.75+2.25 =2.98+0.56=12.53+4.67=6.07+4.89=5.64-1.78=10.2-6.45 =5-0.41 =0.3+1.5=2.5+9.8=7.6+1.3=4.4+5.7=23+7.7 =5.7+3.1 =7.69+2.31 =9.16+2.64=5.68+12.22=16.8+16.5=26.3+14.6=6.9+3.4=52.3+64.7=12.75-5.3

3、 =8.24+16.93=0.75 + 0.4=20 + 0.78=4.8 + 4.2=2 - 0.75 =8.7 + 0.03 =0.2 - 0.09=14 +0. 78=3+2.7=5 -0. 08=8.5 + 2.5=2.4 - 1.4=0.68 + 0.42=7.82 - 7.2=2 + 9.1 =0.48 + 0.52=8.1 一 5.1=0.78 - 0.24=0.8 + 0.18=0.89 - 0.25=1 一 0.98=0.9 + 0.1 =1 - 0.8 =4.5 一 4=5.6 + 4=10 一 4.4=6 + 6.6=9.5 - 2.7 =1 - 0.55 =3.7 +

4、4.8=7 + 3.3=3. 25 +0. 75 =2.7 + 3.9=0. 7+ 0. 9=0.9 +1=14 . 6-0. 4=10 -0. 1 =1. 64 +2. 35 =1. 1-1 =8. 34 -6. 22=6.14+3.83=7.93-1.64=5.23-2.36=1.3 + 4.3=7.2 + 6.9=9.3-8.8=4.4 + 15.99=19.8 - 5.6=96.3 - 56.2=79.2 + 56.8=1.9 + 25.793=88 - 69.21 =136.5 - 105 =73.4+52.1 =93.1-20.9=63.1-11 =0.33+9.8 =7.8+6.

5、9=0.2+2.7=5.6+4.4=9.4+0.06=0.7+0.4=0.5 - 0.45 =10 - 0.1 =1.8 - 0.9=12.6 - 1.2=17+0.33 =1.01+0.6=7 - 0.05=9 - 0.26=3.44+3.36=8.63-3.48=1.16+4.77=7.74-5.85 =9.35-4.74=4.93+4.75=4.1 3.8=14 + 0.78=14.6-0.34=8.17-5.26=2.26-0.86=6.55+4.68=1.1+4.5=1.9+3.4=3.45+4.6=4.45+4.5 =9.4-2.75=7.3-1.26=3.83+5.55=2.75

6、+1.3=7.6-2.15 =1.9+6.2=7.1-6.6=6.8-2.8=44.4+1.4=1.7+9.66=43.3+6.3 =55.5-1.9=38.9-5.55=64.41+8.67=0.7 + 0.9=3.8 + 0.6=8.24+3.76=1.3+8.56=0.8-0.55=1-0.03=30.5+3.05 =0.8-0.45 =3.25 + 0.75 =0.78+2.2=5-0.08=10-0.1 =10 一 7.64=13.6 + 8.46=0.99 + 1.1 =1.23+6.52=5.32-0.93=6.35-5.23=1.23+5.69=1.26+5.21 =0.96-

7、0.23=7.26-4.93=2.16-0.23=4.63+8.9=9.28+7.32=5.2-0.9=2.65+9.32=7.65-6.23 =8.28+4.75 =9.23+5.45 =6.23-4.53 =8.52+4.65 =5.2+2.63=4.62+8.95=7.24+6.21 =3.8-2.3 =0.7 + 0.9=0.8 + 0.6=8.24 + 3.76=27.38-5.34=2.62+4.66=8.5+9.63=4.1 - 3.8=14 + 0.78=14.6 - 0.34=1.3 + 8.56=0.8 - 0.55 =10 - 0.1 =4 - 0.04=1 - 0.03

8、=30.5 + 3.05=0.8 - 0.45 =0.78 + 2.2=5 - 0.08=3.25 + 0.75=8.65 6.31 =10 7.64=13.6 + 8.46=0.99 + 1.1 =3.17+3.43 =6.82+15.55 =34.52-17.87=12.23+4.57=23.75+8.64=17.83+9.5=7.83 0.5=3.45+8.7=16.55 + 1.3=8.54+5.96=4.76-1.12=1.45+2.7=4.31+21.76=9.46+18.28=42.39-20.92=21.85+37.08=3.2+1.8=0.9+0.6=0.1 - 0.01 =1.2 - 0.12=1 -