Tìm thành phần chưa biết của mỗi phép tính sau:

a) 150 + .......... = 213 b) 56 × .......... = 560

360 – ......... = 259 8 700 : ......... = 87

........ – 81 = 265 ............ : 1 000 = 79

a) 34 × 3 + 28 = ...................................

                      = ....................................

c) 354 : 6 – 264 : 12 = .........................

                                 = .........................

e) (256 + 64) : 16 = .............................

                            = .............................

b) 223 – 23 × 5 = .................................

                        = ..................................

d) (18 + 37) × 24 = ..............................

                            = ..............................

g) (121 – 88) : 11 = ..............................

                            = ..............................

67 × 10 = .......................

67 × 100 = .....................

5 240 : 10 = ...................

52 400 : 100 = ...............

18 × 100 = .....................

18 × 1 000 = ..................

117 300 : 10 = ...............

117 300 : 100 = .............

100 × 129 = ..................

1 000 × 16 = .................

880 000 : 100 = ............

880 000 : 1 000 = .........

a) 416 067 + 874 125

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b) 608 341 – 276 303

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c) 32 019 × 7

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d) 82 984 : 41

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