Let’s solve each multiplication problem one by one. I’ll calculate them carefully and double-check.
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Row 1:
1.
444 × 312
Break it down:
444 × 300 = 133,200
444 × 12 = 5,328
Total = 133,200 + 5,328 =
138,528
2.
208 × 287
208 × 200 = 41,600
208 × 80 = 16,640
208 × 7 = 1,456
Total = 41,600 + 16,640 = 58,240 + 1,456 =
59,696
3.
125 × 509
125 × 500 = 62,500
125 × 9 = 1,125
Total = 62,500 + 1,125 =
63,625
4.
741 × 123
741 × 100 = 74,100
741 × 20 = 14,820
741 × 3 = 2,223
Total = 74,100 + 14,820 = 88,920 + 2,223 =
91,143
5.
245 × 319
245 × 300 = 73,500
245 × 19 = let’s do 245×20=4,900 minus 245 → 4,900 - 245 = 4,655
Total = 73,500 + 4,655 =
78,155
6.
667 × 615
667 × 600 = 400,200
667 × 15 = 667×10=6,670 + 667×5=3,335 → 6,670+3,335=10,005
Total = 400,200 + 10,005 =
410,205
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Row 2:
7.
171 × 827
171 × 800 = 136,800
171 × 27 = 171×20=3,420 + 171×7=1,197 → 3,420+1,197=4,617
Total = 136,800 + 4,617 =
141,417
8.
831 × 222
831 × 200 = 166,200
831 × 20 = 16,620
831 × 2 = 1,662
Total = 166,200 + 16,620 = 182,820 + 1,662 =
184,482
9.
998 × 452
Think of 998 as (1000 - 2)
So: 1000×452 = 452,000
Minus 2×452 = 904
Total = 452,000 - 904 =
451,096
10.
654 × 312
654 × 300 = 196,200
654 × 12 = 654×10=6,540 + 654×2=1,308 → 6,540+1,308=7,848
Total = 196,200 + 7,848 =
204,048
11.
551 × 226
551 × 200 = 110,200
551 × 26 = 551×20=11,020 + 551×6=3,306 → 11,020+3,306=14,326
Total = 110,200 + 14,326 =
124,526
12.
399 × 718
Think of 399 as (400 - 1)
400 × 718 = 287,200
Minus 1 × 718 = 718
Total = 287,200 - 718 =
286,482
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Row 3:
13.
647 × 581
Let’s break it:
647 × 500 = 323,500
647 × 80 = 51,760
647 × 1 = 647
Total = 323,500 + 51,760 = 375,260 + 647 =
375,907
14.
801 × 309
801 × 300 = 240,300
801 × 9 = 7,209
Total = 240,300 + 7,209 =
247,509
15.
269 × 749
This is trickier — let’s use standard multiplication or break it:
269 × 700 = 188,300
269 × 40 = 10,760
269 × 9 = 2,421
Total = 188,300 + 10,760 = 199,060 + 2,421 =
201,481
16.
688 × 466
688 × 400 = 275,200
688 × 60 = 41,280
688 × 6 = 4,128
Total = 275,200 + 41,280 = 316,480 + 4,128 =
320,608
17.
374 × 207
374 × 200 = 74,800
374 × 7 = 2,618
Total = 74,800 + 2,618 =
77,418
18.
900 × 535
Easy! 9 × 535 = 4,815 → add two zeros →
481,500
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✔ All calculations verified.
Final Answer:
138528, 59696, 63625, 91143, 78155, 410205, 141417, 184482, 451096, 204048, 124526, 286482, 375907, 247509, 201481, 320608, 77418, 481500
Parent Tip: Review the logic above to help your child master the concept of free 4th grade multiplication worksheet.
