Q.1
What happens when a number is multiplied by 1?
  • The number is doubled
  • The number does not change
  • The number is halved
  • The digit moves one place to the right
Q.2
What number do you get if you double 35?
  • 60
  • 70
  • 80
  • 90
Q.3
30 x 4 = ?
  • 12
  • 60
  • 120
  • 150
Q.4
How many 6s in 18?
  • 2
  • 3
  • 5
  • 6
Q.5
Which number sentence is incorrect?
  • 12 x 4 = 48
  • 4 x 12 = 48
  • 48 ÷ 12 = 4
  • 12 ÷ 4 = 48
Q.6
How do we calculate double a number?
  • Multiply by 10
  • Divide by 2
  • Multiply by 2
  • Divide by 3
Q.7
What number do you get if you double 18?
  • 36
  • 38
  • 40
  • 42
Q.8
What number do I get if I share 45 between 5?
  • 4
  • 5
  • 9
  • 10
Q.9
A tower is 4 bricks tall; how many bricks in a tower 3 times taller?
  • 1
  • 3
  • 12
  • 15
Q.10
500 ÷ 10 = ?
  • 5
  • 50
  • 250
  • 5,000
Q.11
Using the tip, what is the correct answer to the given calculation? TIP: To multiply a number by 9: first multiply the number by 10, then subtract the original number from it. 47 × 9 = ?
  • 432
  • 423
  • 342
  • 324
Q.12
Using the tip, what is the correct answer to the given calculation? TIP: To multiply a number by 8: multiply the number by 2, then by 2 again, and finally by 120 × 8 = ?
  • 609
  • 906
  • 960
  • 690
Q.13
Using the tip, what is the correct answer to the given calculation? TIP: To multiply a number by 12, first multiply the number by 10, then add twice the original number to it. 38 × 12 = ?
  • 456
  • 465
  • 645
  • 546
Q.14
Using the tip, what is the correct answer to the given calculation? TIP: To multiply a number by another number which is a multiple of 10 and whose only non zero digit is the leading digit 1: move the decimal point (d.p.) to the right by the same number of zeros that are in the multiple ofNote: whole numbers that do not have decimal parts are written without a d.p. e.g. 200.0 = 200: in such cases the d.p. is not normally needed. 34.56 × 100 = ?
  • 345.6
  • 3,456
  • 34,560
  • 0.3456
Q.15
Using the tip, what is the correct answer to the given calculation? TIP: To divide a number by 25: divide by 100, then multiply by 225 ÷ 25 = ?
  • 8
  • 10
  • 9
  • 7
Q.16
Using the tip, what is the correct answer to the given calculation? TIP: To multiply a number by 5: first divide by 2, then move the decimal point (d.p.) to the right. Note: whole numbers that do not have decimal parts are written without a d.p. e.g. 200.0 = 200: in such cases the d.p. is not normally needed. 3,434 × 5 = ?
  • 17,107
  • 17,017
  • 17,710
  • 17,170
Q.17
Using the tip, what is the correct answer to the given calculation? TIP: To divide a number by 5: first multiply by 2 and then move the decimal point (d.p.) to the left. 888 ÷ 5 = ?
  • 17,760
  • 17.76
  • 1,776
  • 177.6
Q.18
Using the tip, what is the correct answer to the given calculation? TIP: To multiply a number by 11, first multiply the number by 10, then add the original number to it. 96 × 11 = ?
  • 1,605
  • 1,056
  • 1,560
  • 1,065
Q.19
Using the tip, what is the correct answer to the given calculation? TIP: To multiply a number by 25: multiply by 100, then divide by 816 × 25 = ?
  • 24,000
  • 20,040
  • 20,400
  • 20,004
Q.20
Using the tip, what is the correct answer to the given calculation? TIP: To divide a number by another number which is a multiple of 10 and whose only non zero digit is the leading digit 1: move the decimal point (d.p.) to the left by the same number of zeros that are in the multiple ofNote: whole numbers that do not have decimal parts are written without a d.p. e.g. 200.0 = 200: in such cases the d.p. is not normally needed. 76,345 ÷ 1,000 = ?
  • 76.345
  • 763.45
  • 7,634.5
  • 0.76345
0 h : 0 m : 1 s