first-grade math
second-grade math
third-grade math
fourth-grade math
fifth-grade math
100

5+0=?

?=5

100

5+5-10=?

?=0

100

10*1

10

100

10/10

1

100

1+2

3

200

10+5=?

?=15

200

10+20-10=?

?=20

200

5*2

10

200

10/2

5

200

(2+5)*2

14

300

20-5=?

?=15

300

30+50=?

?=80

300

10*2

20

300

10/5

2

300

50*2

100

400

10+1=?

?=11

400

100-20+22=?

?=102

400

20*1

20

400

20/4

5

400

20*2

40

500

12+5-5=?

?=12

500

100+20-20+50=

150

500

20*2

40

500

20/5

4

500

50*3

150

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