挑战习题
1
/5
单选题
难度:
1.式子-6-(-4)+(+7)-(-3)写成和的形式是()
A
-6+(+4)+(+7)+(-3)
B
-6+(-4)+(+7)+(-3)
C
(-6)+(+4)+(+7)+(+3)
D
(-6)+(-4)+(+7)+(+3)
提示1:
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正确答案:
Qw==
5YeP5Y675LiA5Liq5pWw77yM562J5LqO5Yqg5LiK6L+Z5Liq5pWw55qE55u45Y+N5pWw44CC5pWF6YCJQ+OAgg==
2
/5
单选题
难度:
2.计算0-(-5)-(+1.71)-(-4.71)的结果为()
A
7
B
-7
C
8
D
-8
提示1:
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正确答案:
Qw==
6Iul566A5L6/6K6h566X77yM5Y6f5byPPTxpbWcgd2lkdGg9MzQwIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0FBLzMxL3JCQUNGRlRJb2NTUUxiVm1BQUFEcm1VTXZnQTY3Mi5wbmciPg==
3
/5
单选题
难度:
3.计算(-3)+(+2.5)+(-0.5)+4-(-3)的结果是()
A
3
B
6
C
7
D
9
提示1:
5L2/55So6L+Q566X5b6L77yM566A5L6/6K6h566X5pu05b+r5pu05YeG
正确答案:
Qg==
6Iul566A5L6/6K6h566X77yM5Y6f5byPPTxpbWcgd2lkdGg9MzU2IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwL0FBLzMxL3JCQUNGRlRJb2NIaVlVMXVBQUFFUkFrR0I2WTI0Ni5wbmciPg==
4
/5
单选题
难度:
4.两数和为m,差为n,则m、n之间的大小关系为()
A
m<n
B
m>n
C
m=n
D
不能确定
提示1:
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正确答案:
RA==
5YiG57G76K6o6K6677yM5oOF5Ya16ICD6JmR5YWF5YiG44CC5Lik5pWw5Z2H5q2j77yM5YiZ5ZKM5aSn5LqO5beu44CC5Lik5pWw5Z2H6LSf77yM5YiZ5beu5aSn5LqO5ZKM44CC5Lik5pWw5Z2H5Li66Zu277yM5oiW5pyJ5LiA5Liq5Li66Zu277yM5ZKM562J5LqO5beu44CC5Lik5pWw5LiA5q2j5LiA6LSf77yM5LiN6IO956Gu5a6a5ZKM5beu5aSn5bCP5YWz57O744CC5pWF6YCJRA==
5
/5
单选题
难度:
5.1、已知a,b,c在数轴上的对应点如图所示,且|a|>|b|>|c|,下列式子中正确的是()
A
a+b+c<0
B
a+c>b
C
b+c<a
D
以上答案都不对
提示1:
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提示2:
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正确答案:
QQ==
Qi7plJnor6/jgIJhK2PvvJww77yMYu+8njDvvIziiLRhK2PvvJxiLkMu6ZSZ6K+v44CCYitj77yeMO+8jGHvvJww77yM4oi0Yitj77yeYS7mlYXpgIlB44CC