人教版小学数学五年级上册口算心算天天练 全册
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人教版五年级(上)口算心算天天练
(每天20分钟)
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5×2= 25×4 = 125×8 =
0.5×2 = 0.25×4 = 1.25×8 =
36×10 = 24×40 = 75×20 =
0.36×10 = 0.24×40 = 7.5×20 =
5×200 = 125×80 = 29×10 =
0.5×200 = 0.125×80 = 0.29×10 = 2.5×2= 0.5×10= 0.6×8=
2.1×2= 2.8×10= 0.04×20=
5.6+0.4= 4.7+2.3= 4.5×2=
6.9-2.5=
7.2×8= 0.62-0.32=
二、列竖式计算。
2.74×8 = 1.36×5 =
4.18×15 = 0.38×35 =
5.6×100= 0.125×8= 0.7×9=
0.8×11= 7.2+12.8= 46.7-3.8= 12.8+4= 0.2×13= 2.5×5=
1.64+4.1= 8.65×10= 0.35×6= 3.08×1= 4.95×1000= 69×0.1= 0.4×5= 0.325×100=
2.5×8= 0.125×4=
3.28×0= 7.2×1= 0.25×40= 1.25×8= 5×0.24=
4.5-0.05= 5×0.12= 24×0.5=
4.8×5= 2.8+4.2= 4.5×2=
二、列竖式计算。
7.45×2 20.5×6
0.64×15 5.5×24
5×7= 12×8= 25×4=
0.5×7= 1.2×8= 2.5×4=
0.5×0.7= 1.2×0.8= 2.5×0.4=
4.5×0.02= 0.7×0.8= 0.04×20=
5.5×0.2= 7.2×0.8= 1.4×0.5= 0.02×0.5= 0.7×0.9= 3.08×0.01= 0.8×1.1= 0.35×0.6= 7.4-2.8=
6.9×0.1= 0.4×0.5=7×0.6=
3.28×0.1= 7.2×0.1= 0.01×0.1=
0.25×0.4= 1.25×0.8= 2.4×0.5=
二、列竖式计算。
6.24×4.5 0.29×0.34
0.321×4.2 9. 65×0.48
10.5×0.4= 7.3+2.7= 8×0.125= 0.61+0.39= 10-9.4= 5.2×0.4= 0.8×0.11= 7.2+12.8= 2.3×100= 4.1+3.7= 2.5×16= 16-5.07= 0.02×0.5= 7.2-0.8= 1.4×0.5= 17.5+32.5= 1.02×0.2= 5.02×0.3= 1.2×6=0.26×0.3= 8.4×0.02= 0.8×0.05= 0.8×0.13= 0.34×0.2= 8.08+0.92= 0.5×2.2=0.3×0.5= 1.25×4= 3.27+0.63= 15.8×0=
二、列竖式计算。
24×54.5 32.6×1.9
0.28×0.15 68×0.44
0.8×0.5= 5.5×0.3= 0.6×0.11=
5.5+5.5= 0.54+2.2= 3.5-0.05=
2×0.02= 0.25×40= 1.2×0.3 = 1.5×0.6= 73.5×0.1= 0.61+0.39= 46.5+52.5= 0.45×0.2= 1.25×8=
2.64-1.54= 2.1×2= 2.5×2=
0.8×1.25= 0.4×25=0.6×8=
2.5×101= 0.02×
3.5= 3.3×0.3=
5.6×1= 23.5×0.1= 1.5×0.6=
2.0×0.9= 1.5×0.4= 1.8×0.5=
二、判断积是几位小数。
0.25×0.09 () 2.003×1.5 ()
1.03×0.4 () 1.024×4.28 ()3.28×0.005()
2.5×1.4 ()0.68×9 () 2.6×15 ()
32.6×50 () 0.39×0.7 ()
三、比大小
1.21×1.3 ○ 1.21 5.7×0.9○5.7
3.27×
4.5 ○ 3.27×0.5 1×4.4 ○ 0×4.4
9.6×0.85 ○ 0.85×9.6 24×0.65 ○ 24
一、直接写得数。
60×0.5= 32+200= 0.12×6= 1.7+5.8= 5-4.45= 0.2×0.4= 9.8-6.8= 6.89+9.81= 1.7×0.4= 2.8+3.5= 1.05×6= 16×0.5= 0.12×5= 15.5-2.5= 40×0.0.9= 0.5+2.5= 9×0.2= 0.9×0.3= 0.1×6= 2.1×0.7= 0.6×0.15= 20×0.05= 1.2×0.3= 0.3×0.9= 6.2+3.8= 5.5×3= 9×0.05=
0.33×2= 9.6+0.4= 0.8×0.8=
二、算一算(按要求保留积的小数位数)。
保留一位小数: 6.3×2.8 1.29×12.5
保留两位小数: 0.98×2.45 7.36×0.54
一、直接写得数
3.4-1.4×2= 0.7+0.8×4=
6×0.6+3.4= 4.8×0.5×2=
7×1.1-7.2= 0.05×4×5=
0.62+0.32×2= 8.65×10-6.5=
2.8×2+4.4= 5.2×0.4×0.5=
2.19+0.91×2= 4-4×0.3=
1.4×0.5+0.5= 35×0.6-0.6=
100-9.4×10= (4.8+1.2)×1.5=
3.25×0.117×0=12.5×37×8=
0.7×0.6×100= (0.68+0.42)×0.5=
二、脱式计算。
6.4+1.6×2.5 10.69-3.5×2.6 12.4×0.6×1.3 0.8×18.5-12.6