算一算.
|
(1)42.9 ÷10= |
(2)42.9 ÷100= |
|
(3)42.9 ÷1000= |
(4)4.29 ÷100= |
算一算.
|
(1)3.27 ×10= |
(2)3.27 ×100= |
|
(3)3.27 ×1000= |
(4)0.327 ×1000= |
口算
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(1)2.4 +7.3= |
(2)6.42 -0.21= |
|
(3)10.7 -5.7= |
(4)5.4 +5.04= |
口算
|
(1)8.39 -0.28= |
(2)4.4 +0.39= |
|
(3)6.3 +3.6= |
(4)0.95 -0.32= |
口算
|
(1)7.5 -4.3= |
(2)2.18 +6.72= |
|
(3)7 -0.99= |
(4)0.47 +6= |
直接写出得数.
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(1)3.4 +1.6= |
(2)4.3 -0.8= |
|
(3)6.7 +1.3= |
(4)3.2 -0.4= |
直接写出得数.
|
(1)0.3 +0.7= |
(2)1.2 +1.8= |
|
(3)4 -0.5= |
(4)1 -0.25= |