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题型:填空题 题类:常考题 难易度:容易
笔算乘法(含估算,含连乘式题:125×8×7) 3070 10
1,4,16,64,,.
30 27 {#blank#}1{#/blank#} {#blank#}2{#/blank#} 18 15 12 9 6 3
7260,7270,{#blank#}1{#/blank#},7290,{#blank#}2{#/blank#},7310.
①1,2,4,8,16,32,{#blank#}1{#/blank#};
②1,1,2,3,5,8,13,{#blank#}2{#/blank#};
③625,125,25,{#blank#}3{#/blank#},{#blank#}4{#/blank#};
④9×0+1=1;
9×1+2=11;
9×2+3=21;
9×3+4=31;
猜想:第n个等式(n为正整数)应为{#blank#}5{#/blank#}。
690,695,{#blank#}1{#/blank#},{#blank#}2{#/blank#},710,715,{#blank#}3{#/blank#},{#blank#}4{#/blank#}.
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