小二甲 蘇家榆 數補 p32 01/25/97 星期五 天氣：雨天 心情：高興 (1) 46+( ) = 80 ( ) = 80-46 = 80-40-6 = 34 46+34 = 80 驗算： 80-34 = 80-30-4 = 46 (2) 37+( ) = 90 ( ) = 90-37 = 90-30-7 = 53 37+53 = 90 驗算： 90-53 = 90-50-3 = 37 (3) 27+( ) = 63 ( ) = 63-27 = 63-20-3-4 = 36 27+36 = 63 驗算： 63-36 = 63-30-3-3 = 27 (4) 38+( ) = 81 ( ) = 81-38 = 81-30-1-7 = 43 38+43 = 81 驗算： 81-43 = 81-40-1-2 = 38 (5) 48+( ) = 74 ( ) = 74-48 = 74-40-4-4 = 26 48+26 = 74 驗算： 74-26 = 74-20-4-2 = 48 (6) 69+( ) = 80 ( ) = 80-69 = 80-60-9 = 11 69+11 = 80 驗算：80-11 = 80-10-1 = 69 (7) 59+( ) = 73 ( ) = 73-59 = 73-50-3-6 = 14 59+14 = 73 驗算： 73-14 = 73-10-3-1 = 59 (8) 39+( ) = 86 ( ) = 86-39 = 86-30-6-3 = 47 39+47 = 86 驗算： 86-47 = 86-40-6-1 = 39 (9) 10+( ) = 70 ( ) = 70-10 = 60 10+60 = 70 驗算：70-60 = 10 (10) 40-( ) = 17 ( ) = 40-17 = 40-10-7 = 23 40-23 = 17 驗算： 17+23 = 17+20+3 = 40 (11) 70-( ) = 34 ( ) = 70-34 = 70-30-4 = 36 70-36 = 34 驗算： 34+36 = 34+30+6 = 70 (12) 60-( ) = 21 ( ) = 60-21 = 60-20-1 = 39 60-39 = 21 驗算：21+39 = 21+30+9 = 60 (13) 81-( ) = 27 ( ) = 81-27 = 81-20-1-6 = 54 81-54 = 27 驗算： 27+54 = 27+50+3+1 = 81 (14) 61-( ) = 54 ( ) = 61-54 = 61-50-1-3 = 7 61-7 = 54 驗算： 54+7 = 54+6+1 = 61 (15) 92-( ) = 49 ( ) = 92-49 = 92-40-2-7 = 43 92-43 = 49 驗算： 49+43 = 49+40+1+2 = 92 (16) 72-( ) = 36 ( ) = 72-36 = 72-30-2-4 = 36 72-36 = 36 驗算： 36+36 = 36+30+4+2 = 72 (17) 52-( ) = 13 ( ) = 52-13 = 52-10-2-1 = 39 52-39 = 13 驗算：13+39 = 13+30+7+2 = 52 (18) 63-( ) = 27 ( ) = 63-27 = 63-20-3-4 = 36 63-36 = 27 驗算： 27+36 = 27+30+3+3 = 63 (19) 83-( ) = 44 ( ) = 83-44 = 83-40-3-1 = 39 83-39 = 44 驗算：44+39 = 44+30+6+3 = 83 (20) 94-( ) = 17 ( ) = 94-17 = 94-10-4-3 = 77 94-77 = 17 驗算： 17+77 = 17+70+3+4 = 94 (21) 85-( ) = 19 ( ) = 85-19 = 85-10-5-4 = 66 85-66 = 19 驗算： 19+66 = 19+60+1+5 = 85 (22) 75-( ) = 16 ( ) = 75-16 = 75-10-5-1 = 59 75-59 = 16 驗算： 16+59 = 16+50+4+5 = 75 (23) 76-( ) = 57 ( ) = 76-57 = 76-50-6-1 = 19 76-19 = 57 驗算： 57+19 = 57+10+3+6 = 76 (24) 87-( ) = 68 ( ) = 87-68 = 87-60-7-1 = 19 87-19 = 68 驗算： 68+19 = 68+10+2+7 = 87 《《 瀏覽次數：1 |
| 本站公告：〔您越需要我們，我們就越有創意〕 | 本站說明書：〔發現故鄉還有改進的地方，請來信告訴原丁們〕 |
| 觀察應用學習點數 ：〔咱的故鄉有您的參與，會使我們有更大的發揮空間，展現更豐富精彩的學習畫面〕 | 〔期待藉由無障礙網頁設計，能讓視障小朋友更愛看書、更愛寫作且更愛學習〕：盲用電腦「心得分享」 |