Mental Math
Factors and Multiples
Place Value
Rounding
Multiplication
100

18+50

68

100

What are the factors of 10?

1, 10, 2, 5

100

How many tens are in a hundred?

10 tens

100

Round 581 to the nearest hundred

600

100

30x1000

30,000

200

801+25

826

200

What are the factors of 36?

1, 36, 2, 18, 3, 12, 4, 9, 6

200

How many hundreds are in the number 3,284

2 hundreds

200

Round to the nearest thousand: 7,500

8,000

200

70x500

35,000

300

78+45

123

300

What are the first 5 multiples of 8?

8, 16, 24, 32, 40

300

What is the value of the 6 in 17,063?

60

300

Round to the nearest thousand: 962

1,000

300

150x6

900

400

137+63

200

400

What is the GCF of 63 and 56?

9

400

The value of the 5 is 100 times the value of which place in 52,583?

The hundreds place.

400

Round the answer to the nearest ten:

7301+ 4823


12,120

400

256x7

1792

500

348+20+14

382

500

What is the LCM of 12 and 15?

60

500

Write seven thousand three hundred twenty six in expanded form.

7000 + 300 +  20+ 6

500

Round the answer to the nearest thousand:

29,849-15,043

15,000

500

5176x9

46,584