4th Mental Math

400 x 70

• 28,000

• 2,800

• 8,200

• 3,200

500 x 70

• 2,500

• 35,000

• 3,500

• 350

30 x 80

• 240

• 2,400

• 3,200

• 3,000

30 x 70

• 3,000

• 4,000

• 2,100

• 210

60 x 20

• 2,300

• 120

• 3,000

• 1,200

700 x 20

• 14,000

• 1,400

• 3,000

• 2,000

9,000 - 2,000

• 9,000

• 2,000

• 7,000

• 11,000

8,000 - 3,000

• 3,000

• 8,000

• 5,000

• 11,000

8,700 - 6,500

• 3,200

• 2,100

• 2,000

• 2,200

7,200 - 3,100

• 4,100

• 4,000

• 4,300

• 10,300