L.O- To multiply 2 digit numbers using the grid method
S.C1) I can multiply 2 digit numbers by a single digit
2) I can multiply 2 digit numbers by 2 digit numbers
KEY EXAMPLE
46 x 73 = 2800 + 420 + 120 + 18 = 3358
32 x 4 = 120 + 8 = 128
x
30
2
4
120
8
x
40
6
70
2800
420
3
120
18
STAR CHALLENGE – For each question, show your working in your book
(no cheeky shortcuts – the Number Crunchers will be very disappointed).
1) £34 x 2
2) 43cm x 2
3) 53kg x 5
4) 62g x 3
5) 44p x 5
6) £35 x 4
7) 23m x 4
8) 92km x 3
9) 45kg x 6
MOON CHALLENGE – Show your working in your book
1) £87 x 2
2) 47cm x 3
3) 68kg x 5
4) 63g x 8
5) 77p x 6
6) £89 x 4
7) 36m x 9
8) 67km x 8
9) 143kg x 6
Adam Up Maths
www.adamup.co.uk
SUN CHALLENGE – For each question, show your working in your book
1) £34 x 23
2) 43cm x 31
3) 53kg x 43
4) 62g x 57
5) 48p x 68
6) £38 x 75
7) 23m x 99
8) 92km x 47
9) 245kg x 87
PROBLEMS ON NUMBEARTH
1) A space shuttle can fly around Numbearth in 34 hours. How long will it
take for it to fly around Numbearth 6 times?
2) Adam is asked to take 5ml of medicine every day for 8 weeks. How
much will he have taken in total? (Hint – Work out how many days he
takes the medicine first of all).
3) A can of anti-gravity drink costs 34 NN (Numbearth Notes). Adam
decides to buy 16 cans. He pays with 1000 NN. How much change does
he get?
4) Adam wants to buy 28 books from Earth. Each book costs £15. When
he converts his NN to £, he has £256. How many more £s does he
need.
5) Adam’s mum buys 28 bags of sugar. Each bag weighs 950kg. What is
the total weight of the bags in kg?
Adam Up Maths
www.adamup.co.uk