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Multiplication of Numbers
Correct Answers:
A. Select the property of multiplication that applies to each number sentence.
1. 0 × 45 = 0
order or commutative property of multiplication
grouping or associative property of multiplication
identity property of multiplication
zero property of multiplication
distributive property of multiplication over addition
2. 55 × 1 = 55
order or commutative property of multiplication
grouping or associative property of multiplication
identity property of multiplication
zero property of multiplication
distributive property of multiplication over addition
3. 12 × 14 = 4 × 12
order or commutative property of multiplication
grouping or associative property of multiplication
identity property of multiplication
zero property of multiplication
distributive property of multiplication over addition
4. 9 × ( 2 × 3 ) = ( 9 × 2 ) × 3
order or commutative property of multiplication
grouping or associative property of multiplication
identity property of multiplication
zero property of multiplication
distributive property of multiplication over addition
5. 3 × ( 50 + 6 ) = ( 3 × 50 ) + ( 3 × 6 )
order or commutative property of multiplication
grouping or associative property of multiplication
identity property of multiplication
zero property of multiplication
distributive property of multiplication over addition
B. Fill in the blank with the missing factor.
6.
8 × = 56
7.
9 × 4 =
8.
× 4 = 28
9.
7 × 7 =
C. Multiply. Fill in the blank with the correct answer.
10.
   128
×    5
11.
  679
×    3
12.
   1298
×    9
13.
  932
×    7
14.
  1356
×    6
15.
  2782
×    4
D. Fill in each blank with the missing number
16.
× 90 = 360
17.
40 × = 1600
18.
136 × 100 =
19.
× 4 = 3200
E. Estimate each product. Fill in the blank with the correct answer.
20.
   45
×    38
21.
  265
×    4
22.
   104
×    21
23.
  325
×    89
24.
  463
×    22
25.
  745
×    84
F. Read and solve each problem. Fill in the blank with the correct answer.
26.
During the flag ceremony, 12 rows of pupils line up at the school grounds. If there are 50 pupils in each row, how many pupils are there in all?
There are pupils in all.
27.
Each pupil will pay ₱400 for the field trip. If 45 pupils will join the trip, how much will they pay altogether?
The pupils will pay ₱ altogether.
28.
Each month, Father pays ₱1458 for electricity. If his bill does not change in 6 months, about how much will he have paid in all?
Father will have paid ₱ in 6 months.
29.
Karlo runs 3820 meters a day. About how many meters does he run in 15 days?
Karlo runs meters in 15 days.
30.
A box of milk costs ₱54. How much will 2 dozens of boxes cost?
2 dozens of boxes will cost ₱ .