一、口算。(每题 1 分,共 30 分)
$20 + 4 =$ $13 - 7 =$ $3 + 7 - 4 =$
$70 - 60 =$ $86 - 6 =$ $4 + 8 - 5 =$
$6 + 7 =$ $8 + 4 =$ $12 - 3 + 2 =$
$73 - 3 =$ $11 - 3 =$ $18 - 10 + 7 =$
$30 + 2 =$ $70 + 6 =$ $77 - 70 + 8 =$
$59 - 50 =$ $16 - 9 =$ $60 - 20 + 50 =$
$60 + 6 =$ $12 - 8 =$ $13 - 4 + 7 =$
$25 - 20 =$ $40 + 40 =$ $95 - 5 - 30 =$
$47 - 40 =$ $38 - 8 =$ $27 - 7 + 6 =$
$30 + 20 =$ $71 - 70 =$ $11 - 8 + 60 =$
$20 + 4 =$ $13 - 7 =$ $3 + 7 - 4 =$
$70 - 60 =$ $86 - 6 =$ $4 + 8 - 5 =$
$6 + 7 =$ $8 + 4 =$ $12 - 3 + 2 =$
$73 - 3 =$ $11 - 3 =$ $18 - 10 + 7 =$
$30 + 2 =$ $70 + 6 =$ $77 - 70 + 8 =$
$59 - 50 =$ $16 - 9 =$ $60 - 20 + 50 =$
$60 + 6 =$ $12 - 8 =$ $13 - 4 + 7 =$
$25 - 20 =$ $40 + 40 =$ $95 - 5 - 30 =$
$47 - 40 =$ $38 - 8 =$ $27 - 7 + 6 =$
$30 + 20 =$ $71 - 70 =$ $11 - 8 + 60 =$
答案
一、24 6 6
10 80 7
13 12 11
70 8 15
32 76 15
9 7 90
66 4 16
5 80 60
7 30 26
50 1 63
10 80 7
13 12 11
70 8 15
32 76 15
9 7 90
66 4 16
5 80 60
7 30 26
50 1 63
二、在$◯$里填“>”“<”或“=”。(每题 1 分,共 34 分)
$17 - 8◯8$ $77 - 7 + 5◯72$ $90◯50 + 4$
$18 - 9 + 1◯10$ $50 - 20◯60$ $90◯11 - 5 + 90$
$94 - 90◯4$ $11◯16 - 8 + 2$ $7◯75 - 70$
$29 - 9 + 7◯22$ $30 + 50◯90$ $63 - 3◯3 + 60$
$15◯15 - 8 + 6$ $75 - 5◯75 - 70$ $17 - 10 + 8◯18$
$8 + 40◯30 + 8$ $3 + 40◯70$ $20 + 7◯7 + 20$
$40 + 4◯80$ $43 - 40◯35 - 5$ $66 - 6◯6$
$77 - 7◯70 + 10$ $63 - 3◯36$ $4 + 80◯80 + 9$
$84 - 4◯40$ $20 + 8◯28 - 8$ $70 + 2◯72$
$56 - 6◯30 + 4$ $50◯59 - 9$ $30◯60 - 40 + 7$
$65 - 60 + 70◯57$ $90◯1 + 8 + 80$
$70 - 20 + 9◯29$ $52 - 2◯50 + 2$
$17 - 8◯8$ $77 - 7 + 5◯72$ $90◯50 + 4$
$18 - 9 + 1◯10$ $50 - 20◯60$ $90◯11 - 5 + 90$
$94 - 90◯4$ $11◯16 - 8 + 2$ $7◯75 - 70$
$29 - 9 + 7◯22$ $30 + 50◯90$ $63 - 3◯3 + 60$
$15◯15 - 8 + 6$ $75 - 5◯75 - 70$ $17 - 10 + 8◯18$
$8 + 40◯30 + 8$ $3 + 40◯70$ $20 + 7◯7 + 20$
$40 + 4◯80$ $43 - 40◯35 - 5$ $66 - 6◯6$
$77 - 7◯70 + 10$ $63 - 3◯36$ $4 + 80◯80 + 9$
$84 - 4◯40$ $20 + 8◯28 - 8$ $70 + 2◯72$
$56 - 6◯30 + 4$ $50◯59 - 9$ $30◯60 - 40 + 7$
$65 - 60 + 70◯57$ $90◯1 + 8 + 80$
$70 - 20 + 9◯29$ $52 - 2◯50 + 2$
答案
二、> > >
= < <
= > >
> < <
> > <
> < =
< < >
< > <
> > =
> = >
> >
> <
= < <
= > >
> < <
> > <
> < =
< < >
< > <
> > =
> = >
> >
> <
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