We’ll be taught to multiply 3-digit numbers by 2-digit numbers.
Multiplication by 3-Digit Numbers × 2 Digits:
I. Multiply 148 by 18.
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pearl H T HE 4 1 8 × 1 8 3 3 4 4 one. + 4 1 8 0 2. 7 5 2 4 3. |
one. 18 = 1 ten and eight ones Multiply 8 by all numbers 418 × 8 grains = 3344 grains 2. Multiply 1 ten by all numbers 418 × 1 ten = 418 tens = 4180 3. Add the 2 merchandise [1. + 2.] 3344 + 4180 = 7524 |
II. Multiply 354 by 24.
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pearl H T HE 3 5 4 × 2 4 1 4 1 6 one. + 7 0 8 0 2. 8 4 9 6 3. |
one. 24 = 2 tens and 4 ones Multiply 4 by all numbers 354 × 4 grains = 1416 grains 2. Multiply 2 tens by all numbers 354 × 2 tens = 708 tens = 7080 3. Add the 2 merchandise [1. + 2.] 1416 + 7080 = 8496 |
Questions and Solutions for Multiplying 3-Digit Numbers by 2-Digit Numbers:
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(I) pearl H T HE 4 4 1 × 1 1 ______________ ______________ ______________ |
(ii) pearl H T HE 1 4 0 × 1 3 ______________ ______________ ______________ |
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(iii) pearl H T HE 4 2 0 × 1 6 ______________ ______________ ______________ |
(iv) pearl H T HE 5 0 3 × 1 2 ______________ ______________ ______________ |
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(v) pearl H T HE 9 3 2 × 1 0 ______________ ______________ ______________ |
(vi) pearl H T HE 6 2 9 × 1 3 ______________ ______________ ______________ |
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(vii) pearl H T HE 8 3 7 × 1 1 ______________ ______________ ______________ |
(viii) pearl H T HE 3 3 2 × 2 0 ______________ ______________ ______________ |
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(ix) pearl H T HE 1 8 3 × 2 3 ______________ ______________ ______________ |
(X) pearl H T HE 2 5 1 × 2 7 ______________ ______________ ______________ |
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(xi) pearl H T HE 1 9 2 × 3 8 ______________ ______________ ______________ |
(xii) pearl H T HE 1 6 8 × 5 2 ______________ ______________ ______________ |
third Grade Arithmetic Classes
Multiplying 3-Digit Numbers by 2-Digit Numbers
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