800×3 =
97 - 52 =
0×450 =
31×6 =
610 - 50 =
330 + 150 =
202×3 =
7×60 =
310×2 =
564×1 =
960 - 58 =
605×5 =
390 - 80 =
66 + 190 =
540 + 0 =
700×6 =
560 + 200 =
304 - 200 =
83 - 44 =
250×4 =
28×3 =
112×4 =
410×5 =
507×4 =
97 - 52 =
0×450 =
31×6 =
610 - 50 =
330 + 150 =
202×3 =
7×60 =
310×2 =
564×1 =
960 - 58 =
605×5 =
390 - 80 =
66 + 190 =
540 + 0 =
700×6 =
560 + 200 =
304 - 200 =
83 - 44 =
250×4 =
28×3 =
112×4 =
410×5 =
507×4 =
答案:
1.2400 2.45 3.0 4.186 5.560 6.480 7.606 8.420 9.620 10.564 11.902 12.3025 13.310 14.256 15.540 16.4200 17.760 18.104 19.39 20.1000 21.84 22.448 23.2050 24.2028
267 + 346 =
+
712 - 519 =
-
76×3 =
×
204×7 =
×
157×9 =
×
290×5 =
×
4 2 6
+ 4 9 7
8 1 3
改正 +
4 0 7
× 4
1 6 0 8

改正 ×
建议用时8分钟
实际用时____分钟
做对____题/共32题
评价
+
712 - 519 =
-
76×3 =
×
204×7 =
×
157×9 =
×
290×5 =
×
4 2 6
+ 4 9 7
8 1 3
改正 +
4 0 7
× 4
1 6 0 8
改正 ×
建议用时8分钟
实际用时____分钟
做对____题/共32题
评价
答案:
1.613 2.193 3.228 4.1428 5.1413 6.1450 改正 +
改正 ×
1.613 2.193 3.228 4.1428 5.1413 6.1450 改正 +
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