Time tables
Reading decimals
Adding decimals
Subtracting decimals
Add and subtract
100

9 x 9 =

81

100

How do you say 0.5?

Five tenths

100

0.4 + 0.3 = ?

0.7

100

0.9 - 0.4 = ?

0.5

100

245 + 123 = ?

368

200

8 x 7 =

56

200

How do you read 3.75?

three and seventy-five hundredths

200

3.67 + 4.9 = ?

8.57

200

3.6 - 1.2 = ?

2.4

200

600 - 275 = ?

325

300

6 x 6 =

36

300

Read this number: 4.08.

four and eight hundredths

300

12.48 + 9.305 = ?

21.785

300

15.08 - 9.46 = ?

5.62

300

2,345 + 1,276 - 845 = ?

2,345 + 1,276 - 845 = ?

400

7 x 7 =

49

400

Say 2.305 in words.

two and three hundred five thousandths

400

45.326 + 8.479 = ?

53.805

400

32.7 - 12.85 = ?

19.85

400

A school has 325 boys and 298 girls. How many students are there in total?

623 students

500

9 x 7 =

63

500

How do you say 0.007?

seven thousandths

500

123.456 + 78.909 = ?

202.365

500

50.05 - 26.478 = ?

23.572

500

A library had 5,000 books. They bought 1,245 more and gave away 830. How many books are there now?

5,415 books