Multiplication Division 5 TH CLASS MATHS 4 Multiplication

4. Multiplication • In Arithmetic - Indicated by “times” sign (x). Learn “Times” Table

4. Multiplication (con’t) • Complex Multiplication - Carry result to next column. Problem: 48

MULTIPLICATION PRACTICE EXERCISES 1. a. 21 x 4 84 b. 81 x 9 729

MULTIPLICATION PRACTICE EXERCISES (con’t) 4. a. 94 x 73 6862 b. 5. a. 347

5. Division • 15 Finding out how many times a divider “goes into” a

5. Division (con’t) • Shown by by using aa straight bar ““ 10 5

DIVISION PRACTICE EXERCISES 62 7 434 1. 211 a. 48 5040 b. 2. 13

DIVISION PRACTICE EXERCISES (con’t) 9000 3 27000 6. 7 a. 21 147 b. 7.

CHANGING WHOLE NUMBERS TO FRACTIONS EXERCISES 1. 49 to sevenths = 49 x 7

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Multiplication & Division 5 TH CLASS MATHS

4. Multiplication • In Arithmetic - Indicated by “times” sign (x). Learn “Times” Table 6 x 8 = 48 2

4. Multiplication (con’t) • Complex Multiplication - Carry result to next column. Problem: 48 x 23 +2 48 X 23 4 +2 48 X 23 144 +1 48 X 23 144 6 +1 48 X 23 144 960 1104 Same process is used when multiplying three or four-digit problems. 3

MULTIPLICATION PRACTICE EXERCISES 1. a. 21 x 4 84 b. 81 x 9 729 c. 2. a. 87 x 7 609 b. 43 x 2 86 c. 56 x 0 0 d. 99 x 6 594 3. a. 24 x 13 312 c. d. 55 x 37 2035 b. 53 x 15 795 64 x 5 320 49 x 26 1274 d. 36 x 3 108 4

MULTIPLICATION PRACTICE EXERCISES (con’t) 4. a. 94 x 73 6862 b. 5. a. 347 x 21 7287 b. 6. a. 360 x 37 13, 320 7. a. 493 x 216 106, 488 99 x 27 2673 c. 843 x 34 28, 662 c. b. 884 x 63 55, 692 c. 111 x 19 2109 b. c. 568 x 432 245, 376 34 x 32 1088 d. 83 x 69 5727 966 x 46 44, 436 987 x 654 645, 498 5

5. Division • 15 Finding out how many times a divider “goes into” a whole number. 5=3 15 3=5 6

5. Division (con’t) • Shown by by using aa straight bar ““ 10 5 48 5040 48 2 40 240 0 ““ or or ““ ““ sign. 48 “goes into” 50 one time. 1 times 48 = 48 50 minus 48 = 2 & bring down the 4 48 goes into 24 zero times. Bring down other 0. 48 goes into 240, five times 5 times 48 = 240 minus 240 = 0 remainder So, 5040 divided by 48 = 105 w/no remainder. Or it can be stated: 48 “goes into” 5040, “ 105 times” 7

DIVISION PRACTICE EXERCISES 62 7 434 1. 211 a. 48 5040 b. 2. 13 a. 9 117 310 b. 12 3720 3. 256 a. 23 5888 b. 4. 98 a. 98 9604 67 b. 13 871 5. 50 a. 50 2500 123 b. 789 97047 c. 92 9 828 101 c. 10 1010 687 56 38472 8

DIVISION PRACTICE EXERCISES (con’t) 9000 3 27000 6. 7 a. 21 147 b. 7. 61 a. 32 1952 101 b. 88 8888 8. 67 r 19 a. 87 5848 b. 9. 12 r 955 a. 994 12883 22 r 329 b. 352 8073 858 r 13 15 12883 9

CHANGING WHOLE NUMBERS TO FRACTIONS EXERCISES 1. 49 to sevenths = 49 x 7 7 = 343 7 or 343 7 2. 40 to eighths = 40 x 8 8 = 320 8 or 320 8 3. 54 to ninths = 54 x 9 9 = 486 9 or 486 9 4. 27 to thirds = 27 x 3 3 = 81 3 or 81 5. 12 to fourths = 12 x 4 4 = 48 4 or 48 6. 130 to fifths = 130 x 5 = 5 650 5 or 650 5 3 4 10