以下哪一項的答案與「49 + 21」的相同?
1A數學擂台-加與減

Quiz
•
Mathematics
•
1st Grade
•
Hard
夏 利群
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
21+49
94+21
49+12
12+94
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下哪一項的答案與「12 + 9 + 26」的相同?
12 + 9 + 62
26 + 12 + 19
9 + 26 + 12
9 + 26 + 21
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
23 + 47 = 70
70 - A = 23
A =?
23
47
70
32
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. C + D = 61,D + C =?
C
D
61
16
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
大雄這次數學科測驗取得90分,比上一次多20分。
他上一次數學科測驗取得多少分?
90分
20分
70分
80分
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
保良局前年送出了20份禮物給獨居的長者,比上年少送10份,今年比上年再多送20份。今年送出禮物多少份?
60份
50份
40份
10份
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
紅色彈珠有30粒,黃色彈珠比紅色彈珠多10粒。
以下哪一道算式表示兩種顏色彈珠的總數?
30+30+10
40+10+10
30+10+10
40+40+10
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