口算.
|
(1) |
(2) |
|
28 +86= |
270 +280= |
|
100 -37= |
510 -130= |
|
47 +66= |
880 -490= |
|
80 -51= |
340 +160= |
|
(3) |
(4) |
|
600 -6= |
501 -4= |
|
600 -60= |
894 +7= |
|
439 +8= |
607 -9= |
|
430 +80= |
488 +8= |
口算.
|
(1) |
(2) |
|
300 +400= |
370 -180= |
|
900 -500= |
460 -250= |
|
700 -60= |
500 -330= |
|
140 +70= |
290 +220= |
|
(3) |
(4) |
|
700 -7= |
297 +8= |
|
896 +8= |
602 -4= |
|
502 -9= |
693 +7= |
|
496 +6= |
701 -6= |
2008
北京奥运现在开幕|
(1)680 -50 |
510 -40 |
860 -70 |
|
(2)390 -60 |
720 -60 |
270 -90 |
|
(3)760 -40 |
950 -70 |
640 -80 |
2008
北京奥运现在开幕|
(1)730 +40 |
390 +40 |
480 +50 |
|
(2)550 +30 |
780 +60 |
640 +70 |
|
(3)200 +70 |
860 +80 |
770 +90 |
口算.
|
(1)8 ×8+64= |
(2)630 -360= |
|
(3)9 ×7-25= |
(4)243 +342= |
|
(5)42 ÷6+39= |
(6)505 +9= |
|
(7)36 +19+24= |
(8)505 -9= |
|
(9)80 ÷8-7= |
(10)419 +8= |
口算
|
(1)11 ×6= |
(2)7 ×5+2×5= |
|
(3)48 ÷8= |
(4)7 ×5-2×5= |
|
(5)13 ×4= |
(6)3 ×3×8= |
|
(7)90 ÷9= |
(8)40 ÷5÷4= |
|
(9)14 ×6= |
(10)4 ×2×7= |
口算.
|
(1)510 -380= |
(2)360 +270= |
|
|
(3)807 -9= |
(4)496 +8= |
|
|
(5)606 -7= |
口算.
|
(1)7 ×8+50= |
(2)10 ×7-22= |
|
(3)28 ÷4+35= |
(4)25 +18+25= |
|
(5)4 ×9+55= |
口算
|
(1)3 ×8+6×8= |
(2)9 ×6-9×3= |
|
(3)4 ×2×3= |
(4)32 ÷4÷2= |
|
(5)5 ×2×7= |