Mental Math Multiplication
Find 7 × 40
280
Find 240 ÷ 6
40
Round 47 to the nearest ten.
50
Find 6 × 300
1,800
Find 3,500 ÷ 7
500
Estimate 3 × 58 by rounding 58 to the nearest ten.
3 × 60 = 180
Complete the pattern:
4 × 5 = 20
4 × 50 = ___
4 × 500 = ___
200
2,000
Complete the pattern:
48 ÷ 8 = ___
480 ÷ 8 = ___
4,800 ÷ 8 = ___
6
60
600
Estimate 7 × 83 by rounding 83 to the nearest ten.
7 × 80 = 560
A store has 8 boxes of pencils. Each box contains 400 pencils. How many pencils are there altogether?
3,200
A school has 2,400 crayons to divide equally among 8 classrooms. How many crayons will each classroom receive?
300
Mia collected 1,250 stickers. Jayden collected 1,550 stickers. They divide all their stickers equally into 7 bags. How many stickers go in each bag?
1,250 + 1,550 = 2,800
2,800 ÷ 7 = 400 stickers
Use place value patterns to find all four products:
9 × 6
9 × 60
9 × 600
9 × 6,000
54
540
5,400
54,000
Find 6,300 ÷ 9. Explain how you can use basic multiplication facts to solve mentally.
700; because 9 × 7 = 63, so 9 × 700 = 6,300
A school collected 2,460 cans on Monday and 1,740 cans on Tuesday. The cans were divided equally among 6 donation centers. How many cans did each center receive?
2,460 + 1,740 = 4,200
4,200 ÷ 6 = 700 cans