慢车道
4 + 88 = 75 + 0 = 39 + 43 =
21 + 41 = 37 + 54 = 34 + 9 =
16 + 5 = 54 + 31 = 20 + 71 =
78 - 49 = 78 - 54 = 63 + 24 =
2 ÷ 2 =
4 + 88 = 75 + 0 = 39 + 43 =
21 + 41 = 37 + 54 = 34 + 9 =
16 + 5 = 54 + 31 = 20 + 71 =
78 - 49 = 78 - 54 = 63 + 24 =
2 ÷ 2 =
答案:
快车道
27 + 16 = 100 - 35 = 46 + 24 =
66 - 44 = 67 + 15 = 7 + 37 =
97 - 39 = 97 - 58 = 67 + 22 =
6 + 34 = 74 - 10 = 44 - 13 =
28 ÷ 4 =
27 + 16 = 100 - 35 = 46 + 24 =
66 - 44 = 67 + 15 = 7 + 37 =
97 - 39 = 97 - 58 = 67 + 22 =
6 + 34 = 74 - 10 = 44 - 13 =
28 ÷ 4 =
答案:
加速道
500 + 30 = 600 - 200 = 370 + 100 =
600 - 100 = 570 + 20 = 330 - 300 =
770 - 500 = 840 - 40 = 50 + 700 =
400 + 6 = 130 + 70 = 190 + 20 =
760 - 120 =
500 + 30 = 600 - 200 = 370 + 100 =
600 - 100 = 570 + 20 = 330 - 300 =
770 - 500 = 840 - 40 = 50 + 700 =
400 + 6 = 130 + 70 = 190 + 20 =
760 - 120 =
答案:
加油站
用5,5,0,0这四张数字卡片组成四位数,并按从小到大的顺序排列。
( ) < ( ) < ( )
用5,5,0,0这四张数字卡片组成四位数,并按从小到大的顺序排列。
( ) < ( ) < ( )
答案:
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