GCSE Maths - Unit 1 - Number

6.23 x 5.4 = 33.642

Choose another multiplication with an answer of 33.642

• 62.3 x 0.054

• 62.3 x 0.54

• 0.623 x 54.4

• 0.0623 x 544

6.23 x 5.4 = 33.642

Choose a division with an answer of 0.623

• 33.642 / 5.4

• 33.642 / 540

• 33.642 / 54

• 3.3642 / 5.4

Reorder the following, starting with the smallest.

• 13.74

• 
• 
• 
• 4 x 4

Choose the answer that shows 42 as a product of its prime factors.

• 2 x 3 x 7

• 2 x 21

• 3 x 14

• 6 x 7

Write 84 cubed as a product of its prime factors in index form. (84 to the power of 3)

Mathematical Equivalence

ON

What is the HCF of 75 and 30?

Mathematical Equivalence

OFF

What is the LCM of 75 and 30?

Mathematical Equivalence

OFF

Gabe and Marnie are doing a sponsored walk around a circuit. Marnie takes 25 minutes to do one circuit and Gabe takes 45 minutes. They start together at 9.30am.

When will they next cross the start line together?

• 10.15am

• 9.55am

• 1.15am

• 1.15pm

Estimate the value of this calculation.

Mathematical Equivalence

ON

What is the value of a?

• 3

• 6

• 9

• 12