網頁標題: 數補p26 01/19/97 星期六 天氣:晴 心情:高興
 



小二甲 蘇家榆
數補p26 01/19/97 星期六 天氣:晴 心情:高興
1. 18-3 = 15
15-3 = 12
12-3 = 9
9-3 = 6
6-3 = 3
3-3 = 0
答:需要 6 個盒子才能全部裝完。
18/3 = 6
答:需要 6 個盒子才能全部裝完。
2. 42-6 = 36
36-6 = 30
30-6 = 24
24-6 = 18
18-6 = 12
12-6 = 6
6-6 = 0
答:可分成 7 組。
42/6 = 7
答:可分成 7 組。
3. 35-5 = 30
30-5 = 25
25-5 = 20
20-5 = 15
15-5 = 10
10-5 = 5
5-5 = 0
答:可以裝成 7 盒。
35/5 = 7
答:可以裝成 7 盒。
4. 49-7 = 42
42-7 = 35
35-7 = 28
28-7 = 21
21-7 = 14
14-7 = 7
7-7 = 0
答:可裝成 7 包。
49/7 = 7
答:可裝成 7 包。
5. 42-7 = 35
35-7 = 28
28-7 = 21
21-7 = 14
14-7 = 7
7-7 = 0
答:可以買 6 枝自動鉛筆。
42/7 = 6
答:可以買 6 枝自動鉛筆。
6. 7*9 = 63
答:63
7. 7*6 = 42
答42
8. 計算題:
(1) 75+24 = 75+20+4 = 99
75+24 = 99
驗算: 99-24 = 99-20-4 = 75
(2)95-91 = 95-90-1 = 4
95-91 = 4
驗算: 4+91 = 4+90+1 = 95
(3)47+21 = 47+20+1 = 68
47+21 = 68
驗算: 68-21 = 68-20-1 = 47
(4)85-75 = 85-70-5 = 10
85-75 = 10
驗算: 10+75 = 10+70+5 = 85
(5) 68-32 = 68-30-2 = 36
68-32 = 36
驗算: 36+32 = 36+30+2 = 68
(6) 69+30 = 99
69+30 = 99
驗算: 99-30 = 69
(7) 66+34 = 66+30+4 = 100
66+34 = 100
驗算: 100-34 = 100-30-4 = 66
(8) 57+13 = 57+10+3 = 70
57+13 = 70
驗算:70-13 = 70-10-3 = 57
(9)47+36 = 47+30+3+3 = 83
47+36 = 83
驗算: 83-36 = 83-30-3-3 = 47
(10) 28+63 = 28+60+3 = 91
28+63 = 91
驗算: 91-63 = 91-60-1-2 = 28
(11) 38+66 = 38+60+2+4 = 104
38+66 = 104
驗算: 104-66 = 104-60-4-2 = 38
(12) 79+21 = 79+20+1 = 100
79+21 = 100
驗算:100-21 = 100-20-1 = 79
(13) 59+34 = 59+30+1+3 = 93
59+34 = 93
驗算: 93-34 = 93-30-3-1 = 59
(14) 19+67 = 19+60+1+6 = 86
19+67 = 86
驗算: 86-67 = 86-60-6-1 = 19










本文張貼者:蘇家榆〔張貼時間:民國97年1月25日(星期五)21點58分〕

部落格首頁


學習的故鄉首頁
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」
〔為了讓我們有乾淨的學習環境,請勿任意在本站散播商業廣告與不合法文件或聯結〕:本站宣示