Mystery 1
Mystery 2
Mystery 3
100

How many minutes are in an hour?

60

100

What is the value of the underlined digit?

54

50

100

How many 10s make up 100?

10

200

100-50

50


200

How many months are in a year?

12

200

312+185

497

300

Complete the blank: 112, 114, ____, 118, 120

116

300

How many days are in a week?

7

300

What place value is the 7 in 1,271

tens

400

825+123

948

400

What is the value of the underlined digit?

347

300

400

165-67

98