Find the L.C.M. of 6 and 9.
18
21×14
294
There are 11 boxes of donuts in a bakery originally. A worker packs another 75 donuts into boxes of 5. How many boxes of donuts are there now?
There are 26 boxes.
Find the digits in the units place of the numbers divisible by 5.
0 or 5
408 ÷ 34
12
This quadrilateral has 4 sides of the same length. It also has right angles.
Square
3 × 14 – 52 ÷ 4
29
Find the L.C.M. of 7 and 28.
28
61×45
2745
There are 18 rows of coins, and 6 coins in each row. Each coin weighs 7 g. What is the total weight of all the coins?
The total weight is 756 g.
Find the digit in the units place of the numbers divisible by 10.
0
500 ÷25
20
Write all the quadrilaterals, which must have 4 equal angles.
Rectangle, square
78 + 45 ÷ 3 × 7
183
Find the L.C.M. of 15 and 45.
45
9 × 16 × 25
3600
Tasty Restaurant sells 168 roasted gooses every day. How many roasted gooses are sold in August?
5209 gooses
Use 5 , 8 and 1 to form all 3-digit numbers divisible by 5
185 and 815
880 ÷ 16
55
This quadrilateral has 2 right angles. It has only 1 pair of parallel opposite sides.
trapezium
(210 – 14 × 7) ÷ 7
16
Find the 3rd common multiple of 13 and 39.
39
125 × 36
4500
The price of every cupcake in a bakery is the same. Mrs Chan pays 60 dollars for a dozen cupcakes. The cake cost 168 dollars. Mr Lee buys a cupcake and a cake. How much should he pay?
He should pay $173.
Find the number which is divisible by 10 and is closest to 57.
60
981 ÷ 18
55
This quadrilateral has 2 pairs of parallel opposite sides. It has angles of different sizes.
parallelogram
321 – 80 ÷ 5 + 35 × 8
585
How many common multiples of 6 and 9 are there between 1 and 100?
5
375 × 96
36000
3 cans of biscuits cost 117 dollars. A can of biscuits is 13 dollars cheaper than a can of wafers. Mom has 416 dollars. How many cans of wafers can she buy at most?
She can buy 8 cans at most.
It is a 3-digit number larger than 400 but smaller than 500. It is divisible by both 2 and 10. The digit in the tens place is 6.
460
? ÷ 29 = 30 … 12
882
How many rhombuses can you find in the following picture?
14
263 + 32 × 9 ÷ 6 – 278
33