Page 104 - SK Year 5 Mathematics DLP

4 Calculate the product of 79 and RM1 499.80.

79 × RM1 499.80 =

Method 1 3 6 6 5 Method 2
4 8 8 7
RM 1 4 9 9.8 0 79 × RM1 499.80

× 7 9 = (80 − 1) × RM1 499.80
1 1 1 = (80 × RM1 499.80) − (1 × RM1 499.80)
1 3 4 9 8 2 0
+ 1 0 4 9 8 6 0 0 3 7 7 6
RM 1 1 8 4 8 4.2 0 RM 1 4 9 9.8 0
× 8 0
79 × RM1 499.80 = RM118 484.20 RM 1 1 9 9 8 4.0 0

17 13
8 7 3 10 0
5 14 × RM23 769.05 = RM 1 1 9 9 8 4.0 0
− RM 1 4 9 9.8 0
1 3 2 3 2
RM 2 3 7 6 9.0 5 RM 1 1 8 4 8 4.2 0
× 1 4
1 1 1
9 5 0 7 6 2 0
+ 2 3 7 6 9 0 5 0
RM 3 3 2 7 6 6. 7 0
1 Quick calculation.

14 × RM23 769.05 = RM332 766.70 a 10 × RM47 550.85 =
b 100 × RM2 460.32 =

c 1 000 × RM799.68 =

2 Calculate the total price. 3 Find the products.

Price per Total a 5 × RM198 673 =
Item Quantity
unit price b 30 × RM29 564 =

a Terrace 3 RM286 900 c 69 × RM2 157.90 =
house
b Air purifier 56 RM1 730

c Refrigerator 70 RM3 497

96 • Provide extra exercises on multiplication involving values of money
3.1.3
and 2-digit numbers including ringgit and sen.