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138×25×4 (13×125)×(3×8) (12+24+80)×50
79× 600-60÷15 20×4÷20×4
736-35×20 25×4÷25×4
98-18×5+25 56×8÷56×8 280-80÷ 4
12×6÷12×6 36×9÷36×9
175-75÷25 25×8÷25×8 80-20×2+60
25×8÷(25×8) 100+45-100+45
36-36÷6-6 15×97+3 48×99+1
1000+8-1000+8 5+95×28
100+1-100+1 102+1-102+1 65+35×13 25+75-25+75
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40+360÷20-10
13+24×8 672-36+64 324-68+32 100-36+64
四年级两位数乘一位数(1) 94 × 8 = (2) 57 × 6 = (3) 9 × 67 = (4) 26 × 9 = (5) 41 × 9 = (6) 57 × 3 = (7) 7 × 79 = (8) 62 × 5 = (9) 21 × 1 = (10) 3 × 57 = (11) 5 × 84 = (12) 8 × 26 = (13) 5 × 67 = (14) 37 × 4 = (15) 8 × 98 = (16) 6 × 24 = (17) 98 × 5 = (18) 12 × 2 = (19) 9 × 75 = (20) 68 × 2 =四年级几百几十数乘一位数(1) 4 × 30 = (2) 100 × 4 = (3) 700 × 5 = (4) 9 × 800 = (5) 8 × 80 = (6) 5 × 200 = (7) 6 × 300 = (8) 2 × 600 = (9) 300 × 9 = (10) 2 × 400 = (11) 4 × 50 = (12) 3 × 20 = (13) 60 × 1 = (14) 7 × 600 =
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