四年级上册英语课件-lesson 2 what’s the missing number？ ∣川教版(三年级起点) (共13张PPT)

Lesson 2 What s the Missing Number 12 4050 3035 55 2010根据汉语说出英语单词. sixty seventy eightyninety fiftyone hundred60 70 8090 100 60 4050 3070 80 2090根据汉语说出英语单词. twentythirty f orty fiftysixtyseventy eighty ninety根据英语说出汉语意思. 1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 50 52 53 54 55 56 57 58 59 60 62 63 64 65 66 67 68 69 70 72 73 74 75 76 77 78 79 80 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 What s 2 minus 1? It s 1.Whats 4minus 2? Its 2.Whats 6 minus 3? Its 3.Whats 8 minus 4? Its 4.Whats 10minus 5? Its 5. What s 20 minus 10? It s 10.Whats 30 minus10 ? Its 20.Whats 40minus 20? Its 20.Whats 50minus 40? Its 10.Whats 70 minus 5? Its 65. What s 60 minus 10? It s50 .Whats 70minus11? Its 59.Whats 80 minus 12? Its 68.Whats 90 minus13? Its 77.Whats 100minus 14? Its 86. What s 100 minus50? It s What s 76 minus 45? It s What s 96 minus27? It s What s 87minus 39? It s What s 14 minus _?It s 2.What s 20 minus_?It s 5.What s 70 minus？It s 40.What s 88 minus_?It s 44.What s 100 minus_? It s 50. Thank you!