《2025年一本暑假计算加应用题四年级数学北师大版》

1. 直接写出得数。(每题 1★)
$0.125×4= $0.5 $(6.24+0.76)×0.3= $2.1 $0.2×6.9×5= $6.9
$0.04×25= $1 $0.8×(0.41+2.59)= $2.4 $0.59×9+0.59= $5.9
$2.3×10.1= $23.23 $4.908-0.01×0.8= $4.9 $1.25×1.11×0.8= $1.11
$0.25×80= $20 $0.81×0.6= $0.486 $0.4×0.96×2.5= $0.96
$4.4×0.5= $2.2 $5.4×0.05= $0.27 $1.1×0.9-0.9= $0.09
$12.5×0.08= $1 $1.08×30= $32.4 $0.8+0.8×1.5= $2

答案： 0.5 2.1 6.9
1 2.4 5.9
23.23 4.9 1.11
20 0.486 0.96
2.2 0.27 0.09
1 32.4 2

2. 计算下面各题,能简算的要简算。(每题 3★)
$0.125×2.58×0.8$ $0.78×99$ $16.89+4.03×1.8$
$0.25×(40-0.2)$ $4.4×2.5$ $2.74+3.3+7.26+1.7$
$16-5.35-4.65$ $6.08×101$ $12.3×16.2-2.3×16.2$

答案： 0.258 77.22 24.144
9.95 11 15
6 614.08 162