一、直接写出得数。
14.49÷7 = ________ 12.8÷4 = ________ 80÷0.5 = ________
0.24 + 3.7 = ________ 0.79 + 1.21 = ________ 4.2 + 5.8 = ________
2.5÷0.5 = ________ 0.65×400 = ________ 2.4÷60 = ________
0.6 - 0.49 = ________ 7 - 5.2 = ________ 12.5×16 = ________
24×0.125 = ________ 4.6×30 = ________ 7 - 2.6 = ________
16×0.5 = ________ 0.76÷0.4 = ________ 100×0.47 = ________
0.75 + 0.6 = ________ 7 - 6.2 = ________ 0.63÷0.9 = ________
14.49÷7 = ________ 12.8÷4 = ________ 80÷0.5 = ________
0.24 + 3.7 = ________ 0.79 + 1.21 = ________ 4.2 + 5.8 = ________
2.5÷0.5 = ________ 0.65×400 = ________ 2.4÷60 = ________
0.6 - 0.49 = ________ 7 - 5.2 = ________ 12.5×16 = ________
24×0.125 = ________ 4.6×30 = ________ 7 - 2.6 = ________
16×0.5 = ________ 0.76÷0.4 = ________ 100×0.47 = ________
0.75 + 0.6 = ________ 7 - 6.2 = ________ 0.63÷0.9 = ________
答案:
2.07 3.2 160
@@3.94 2 10
@@5 260 0.04
@@0.11 1.8 200 3 138 4.4 8 1.9 47
@@1.35 0.8 0.7
@@3.94 2 10
@@5 260 0.04
@@0.11 1.8 200 3 138 4.4 8 1.9 47
@@1.35 0.8 0.7
二、在〇里填上“>”“<”或“=”。
189×0.8〇189 0.95×48〇0.95
0×2.72〇0 0.78×1〇0.78
0.45×2.1〇2.1 10.2×0.9〇10.2
189×0.8〇189 0.95×48〇0.95
0×2.72〇0 0.78×1〇0.78
0.45×2.1〇2.1 10.2×0.9〇10.2
答案:
< > = = < <
三、列竖式计算。
6.3÷0.14 = ________ 72÷15 = ________ 1.35÷15 = ________

6.3÷0.14 = ________ 72÷15 = ________ 1.35÷15 = ________
答案:
45 4.8 0.09
四、求下面图形的体积。(单位:dm)

答案:
1. $1.6×4×5 = 120(dm^{3})$
2. $(8 - 5)=3(dm)$
$(14 - 3×2)÷2 = 4(dm)$
$3×4×5 = 60(dm^{3})$
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