《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。
$18.2\times0.01=$ $1.75 - 0.07=$ $4.6\times0.5=$
$9.24 - 5.8=$ $0.02\times3.6=$ $6.6 - 5.8=$
$0.38\times0.3=$ $9 - 1.5=$ $0.14\times100=$
$6.7 - 5.04=$ $6.8\times1000=$ $0.72 + 0.6=$
$0.15\times40=$ $0.76 + 0.04=$ $32.45 - 8.05=$
$0.64 + 0.08=$ $1.2\times50=$ $0.28\times30=$
$6.54\times0.1=$ $8.22 - 0.5=$ $4.6 + 0.08=$
$0.84 - 0.4=$ $180\times0.001=$ $2.1 - 2.09=$
$0.08\times25=$ $0.4\times4.2=$ $2.6\times0.03=$
$1.2 + 2.8=$ $4.8 - 3.65=$ $1.5 + 6.81=$

答案： 0.182 1.68 2.3
3.44 0.072 0.8
0.114 7.5 14
1.66 6800 1.32
6 0.8 24.4
0.72 60 8.4
0.654 7.72 4.68
0.44 0.18 0.01
2 1.68 0.078
4 1.15 8.31

二、解方程。
$2x + 2.4 = 7.6$ $15m = 180$ $x\div35 = 24$

答案： $x = 2.6$ $m = 12$ $x = 840$

一、直接写出得数。
26.35 - 4.06 = 0.37×100 = 3.9 - (0.9 - 0.72) =
40×0.15 = 64.8×0.001 = 77 - 1.25×8 =
1.54 + 0.8 = 1.45 + 5.82 = 12.8×25×0.4 =
6.5 - 1.32 = 100×2.68 = 8.8 + 3.7 - 6.8 =
200×0.18 = 2.19 + 3.9 = (4.9 - 2)×30 =
7 - 0.18 = 0.27×0.2 = 2.6 + (3.44 - 2.44) =
1.65×100 = 0.1×3.13 = (0.05 + 0.95)×0.01 =
2.7 + 0.36 = 8.88 - 8.08 = 36 - 3.7 - 6.3 =
2.8×0.01 = 2.5 + 2.7 = 6×2.5 + 4×2.5 =
0.7×0.15 = 5.5×0.1 = 3.4×1.1 - 3.4 =

答案： 22.29 37 3.726 0.0648 67
@@2.34 7.27 128
@@5.18 268 5.736 6.09 876.82 0.054 3.6
@@165 0.313 0.01
@@3.06 0.8 26
@@0.028 5.2 25
@@0.105 0.55 0.34