Exam Prep Maths Multiplication

4 x 16 =

Answer explanation

Quick ways to solve

10 x 4 = 40

6 x 4 = 24

40+24 =64

or

8 x 4 = 32

32 x 2 = 64

Tags

CCSS.4.NBT.B.5

28 x 9 =

Answer explanation

Quick way to solve

28 x 10 = 280

280 - 30 = 250

250 +2 = 252

Tags

CCSS.4.NBT.B.5

36 x 13 =

Answer explanation

Do a long multiplication or

36 x 3 = 108

36 x 10 = 360

360 + 108 = 468

Tags

CCSS.4.NBT.B.5

1.6 x 3 =

Answer explanation

Quick way

1 x 3 = 3

0.6 x 3 = 1.8

3 + 1.8 = 4.8

Tags

CCSS.6.NS.B.3

2.7 x 6 =

Answer explanation

Quick way

2 x 6 = 12

0.7 x 6 = 4.2

12 + 4.2 = 16.2

Tags

CCSS.6.NS.B.3

7.03 x 8 =

Answer explanation

7 x 8 = 56

0.03 x 8 = 0.24

56 + 0.24 - 56.24

Tags

CCSS.6.NS.B.3

A mug can hold 150 ml of tea. How much tea can 9 mugs hold?

• 1300ml

• 1350ml

• 1500ml

• 1250ml

• 1150ml

Answer explanation

100 x 9 = 900

50 x 9 = 450

900 + 450 = 1350

Tags

CCSS.3.MD.A.2

3.4 x 22 =

• 35.4

• 37.8

• 37.4

• 35.8

• 32.5

Answer explanation

11 is half of 22 so the answer will be half of 74.8

Tags

CCSS.6.NS.B.3

In 2007, the population of Whitestone was 1026.

Now the population is 3.5 times bigger so what is the population now?

Answer explanation

3 x 1026 = 3078

0.5 x 1026 (same as half of) = 513

3078 + 513 = 3591

Tags

CCSS.7.EE.B.3

Cemal is buying boxes for his card collection. Each box holds 127 cards and costs £1.15. His cards fit into 14 boxes exactly.

How many cards does he have in his collection?

Answer explanation

Long multiplication

127 x 14 =

Tags

CCSS.7.EE.B.3