《2025年速算天地数学口算心算五年级上册苏教版》

🦋4.3-2.5=1.8🦋4.5-2.3=2.2
28.7-3.2=25.55.71-1.3=4.41
4-0.5=3.53.6+4.3=7.9
1.1+2.03=3.132-1.9=0.1
6-0.8=5.25+3.01=8.01
4.72-2.3=2.423.75+0.15=3.9
5.29-1.1=4.191.8+0.9=2.7
5.8-2.9=2.95.1-1.5=3.6
0.97-0.87=0.12.7+6.3=9
5.55-3.4=2.150.84-0.3=0.54
2.7-1.4=1.33.8-1=2.8
5.42-1.42=46.9+2.8=9.7
5.6+3.4=95.68+3.3=8.98
4.6-4.57=0.030.76-0.66=0.1
0.9+0.62=1.524-2.8=1.2
1-0.92=0.084.7-4.65=0.05
4.9+3.2=8.10.36+0.64=1
4.24+3.6=7.848-3.9=4.1
3.5+4=7.53.5-0.9=2.6
7.8+1.6=9.41.75-1.02=0.73

答案： 解析：本题主要考查小数的加减法速算。
答案：
$4.3 - 2.5 = 1.8$
$4.5 - 2.3 = 2.2$
$28.7 - 3.2 = 25.5$
$5.71 - 1.3 = 4.41$
$4 - 0.5 = 3.5$
$3.6 + 4.3 = 7.9$
$1.1 + 2.03 = 3.13$
$2 - 1.9 = 0.1$
$6 - 0.8 = 5.2$
$5 + 3.01 = 8.01$
$4.72 - 2.3 = 2.42$
$3.75 + 0.15 = 3.9$
$5.29 - 1.1 = 4.19$
$1.8 + 0.9 = 2.7$
$5.8 - 2.9 = 2.9$
$5.1 - 1.5 = 3.6$
$0.97 - 0.87 = 0.1$
$2.7 + 6.3 = 9$
$5.55 - 3.4 = 2.15$
$0.84 - 0.3 = 0.54$
$2.7 - 1.4 = 1.3$
$3.8 - 1 = 2.8$
$5.42 - 1.42 = 4$
$6.9 + 2.8 = 9.7$
$5.6 + 3.4 = 9$
$5.68 + 3.3 = 8.98$
$4.6 - 4.57 = 0.03$
$0.76 - 0.66 = 0.1$
$0.9 + 0.62 = 1.52$
$4 - 2.8 = 1.2$
$1 - 0.92 = 0.08$
$4.7 - 4.65 = 0.05$
$4.9 + 3.2 = 8.1$
$0.36 + 0.64 = 1$
$4.24 + 3.6 = 7.84$
$8 - 3.9 = 4.1$
$3.5 + 4 = 7.5$
$3.5 - 0.9 = 2.6$
$7.8 + 1.6 = 9.4$
$1.75 - 1.02 = 0.73$