Number Sense_1

Various Topics

100

What digit is in the hundredths place in 570.349?

4

200

How many odd numbers are between 12 and 30?

9 

300

How many prime numbers are between 15 and 21?

2 (17 and 19)

400

Which is larger .048 or .0407?

.048

500

13²

169

Roman Numerals

100

XIV

14

200

XCI

91

300

LXXIV

74

400

XCVI

96

500

LXXVII

77

Addition

100

31 + 43

74

200

81 + 37

118

300

431 + 117

548

400

5 + 15 + 25 + 35

80

500

83 + 173 + 17

273

Subtraction

100

23 - 8

15

200

100 - 44

56

300

324 - 87

237

400

700 - 70 - 140 - 210

280

500

549 - 24 - 24

501

Multiplication

100

16 x 6

96

200

60 x 300

18,000

300

47 x 200

9400

400

18 x 25

450

500

35 x 11

385