《2025年通城学典计算能手四年级数学下册北师大版》

一、直接写出得数。
$7.5×0.3=$ ________ $1.4×0.5=$ ________ $4.8×0.5=$ ________
$0.03×300=$ ________ $3.5×0.1=$ ________ $0.08×0.4=$ ________
$0.08×1000=$ ________ $1.1×100=$ ________ $0.6×0.25=$ ________
$0.43×4=$ ________ $0.18×0.4=$ ________ $0.02×0.4=$ ________
$1.05×0.6=$ ________ $2.7×3=$ ________ $0.1×0.01=$ ________
$0.9×0.12=$ ________ $0.82×0.9=$ ________ $5.6×80=$ ________
$0.8×1.3=$ ________ $0.65×0.2=$ ________ $0.63×6=$ ________
$2.8×0.6=$ ________ $5.5×0.01=$ ________ $0.42×0.5=$ ________
$1.8×0.5=$ ________ $10×0.05=$ ________ $535×0.001=$ ________
$0.13×7=$ ________ $0.7×41=$ ________ $0.05×42=$ ________

答案： 2.25 0.7 2.4
9 0.35 0.032
80 110 0.15
1.72 0.072 0.008
0.63 8.1 0.001
0.108 0.738 448
1.04 0.13 3.78
1.68 0.055 0.21
0.9 0.5 0.535
0.91 28.7 2.1

二、用竖式计算。
$0.48×3.5$ $2.45×0.7$ $6.9×5.25$

答案： 1.68 1.715 36.225