Show:
1st grade
2nd grade
3rd grade
4th grade
5th grade
100

9x9

81

100

14x2+9

37

100

124

288

100

4x5-[3+9]+9

17

100

x = 60 x = 360

6

200

10x10

100

200

25x20

500

200
25x30

750

200

4.789-2.031

2.758

200

8x7+99=P

155

300

11x11

121

300

7x9+20-5

78

300

34

81

300
area of a square that is 4x9

36

300

t + r = 56

r =9

47

400

12x12

144

400

1/3 + 7/6

27/18

400

9xG=72

8

400

9.65432345-9

0.65432345

400

lucky one worth 1000

4x4-[78-4]

58

500

13x13

169

500

3.92462 + 7.923

11.84762

500

4xP=400

100

500

6.594-4.38+[6+5]

13.214

500

89 + e = 99

10