
加法(中级一)
Authored by NG IPG-Pelajar
Mathematics
5th Grade

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6 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
哪个是正确的第一个算式与写法?
(答案可超过一个)
0 + 9 + 1 + 5 + 4 = 19
2 + 1 + 4 = 7
Answer explanation
计算后,答案大过9,就要把算出的答案的号码写在下一个数位(除了个位数号码)。
计算后,等于19。所以“1”写在“1”的上面,“9”写在个位。
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
选出正确的第二个算式与写法。
(答案可超过一个)
1 + 4 + 9 + 3 + 1 = 18
1 + 1 + 4 + 9 + 3 + 1 = 19
Answer explanation
计算时,进位的号码也要一起计算。
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
下一个正确的算式与写法。
(答案可超过一个)
1 + 1 + 7 + 8 + 2 + 1 = 20
1 + 7 + 8 + 2 + 1 = 20
Answer explanation
计算时,进位的号码也要被算进去。
答案是二位数时,号码要写在下一个数位。
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
选出正确的下个步骤与写法。
(答案可超过一个)
2 + 2 + 0 + 6 + 9 + 2 = 20
2 + 2 + 0 + 6 + 9 + 2 = 21
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
选出下个步骤的正确写法。
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
请选出正确且完整的作答。
Answer explanation
算好后,要把答案写在横式的“=”后面。
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