Add me up
How much was lost
Estimate my answer
Round and round
How many times?
100

456 + 432 = 

888

100

86 - 42 = 

44

100

43 + 32 = 

70

100

round me up or round me down...

63

down to 60

100

9 x 2= 

18

200

561 + 987 +342 = 

1890

200

67 - 36 = 

31

200

46 + 22 = 

70

200

round me up or round me down...

87

up to 90

200

6 x 4 = 

24

300

24 + 142 + 754 = 

920

300

72 - 48 = 

24

300

89 + 57 = 

140

300

round me up or round me down...

98

up to 100

300

5x 8 = 

40

400

52 - 10 + 645 = 

687

400

582 - 357

225

400

60 + 32 = 

90

400

round me up or round me down (to the nearest tenth)

109

round up to 110
400

10 x 4 = 

40

500

72 + 23 + 1,342 - 234 = 

1,203

500

700 - 589 =

111

500

35 + 39 =

80

500

round me up or round me down to the nearest hundredth

637

down to 600
500

9 x 7 = 

63

M
e
n
u