《2025年口算训练五年级数学上册北师大版双色升级版》

$2.4÷8÷0.01=$3 $300×0.8÷6=$40 $2.5÷0.5-0.05=$4.95
$5.5+4.5×2=$14.5 $12.5×(1.6÷0.4)=$50 $9.4+0.6×2.5=$11.9
$(8.5-0.5)÷5=$1.6 $75.7-5.7÷3=$73.8 $4.9÷0.7-0.7=$6.3
$0.05×60+40=$43 $6.2+1.38÷0.1=$15 $0.25×8+92=$94
$11.4×11-11.4=$114 $2.4×(10÷0.02)=$1200 $4.8÷0.2+1.8=$25.8
$72÷0.9÷0.8=$100 $74-8.4+1.6=$67.2 $74-8.4-1.6=$64

答案： 3；40；4.95；14.5；50；11.9；1.6；73.8；6.3；43；15；94；114；1200；25.8；100；67.2；64

$0.5+0.5÷0.5=$1.5 $10÷0.4×0.4=$10 $0.21÷0.03×7=$49
$0.21÷(0.03×7)=$1 $1.28÷0.8+12=$13.6 $1.28÷(0.8+12)=$0.1
$3.36×0.4×5=$6.72 $9.6-9.6÷12=$8.8 $(9.6-9.6)÷12=$0
$82.1-2.1+8.9=$88.9 $82.1-(2.1+8.9)=$71.1 $0.8×12.5×14=$140
$9.9÷(1.96-1.06)=$11 $0.72÷0.6÷0.6=$2 $0.63÷0.9×0.7=$0.49
$0.94÷(0.47×2)=$1 $100÷0.25÷0.4=$1000 $100÷0.25×0.4=$160

答案： 1.5
10
49
1
13.6
0.1
6.72
8.8
0
88.9
71.1
140
11
2
0.49
1
1000
160

如图,有(3)个空白三角形平移后能和涂色三角形重合。

答案： 3