【小学3年算数】10-2 小数のたし算、ひき算｜問題集

1.次の計算をしなさい。

(1)\(0.2+0.5\)

(2)\(0.7+0.6\)

(3)\(5.8+0.2\)

(4)\(0.3+0.6\)

(5)\(0.7+0.4\)

(6)\(6.2+0.8\)

(7)\(1.7+6.2\)

(8)\(4.7+3.6\)

(9)\(3.8+5.2\)

(10)\(7+4.1\)

(11)\(5.3+8\)

(12)\(8.2+1.8\)

(13)\(1.4+3.9\)

(14)\(3.6+2.5\)

(15)\(0.5+3.5\)

(16)\(6.2+3.3\)

(17)\(3.7+3\)

(18)\(3.4+2.2\)

(19)\(4.5+3.2\)

(20)\(3.9+1.3\)

(21)\(5.2+1.6\)

(22)\(2.4+3.6\)

(23)\(3.6+3.8\)

(24)\(4+3.6\)

(25)\(3.6+2.5\)

(26)\(4.8+0.6\)

(27)\(0.7+5.3\)

(28)\(5+2.2\)

(29)\(4.6+5.1\)

(30)\(2.5+6.5\)

(31)\(5.6+3.6\)

(32)\(3.4+4.7\)

(33)\(6.2+2.6\)

(34)\(2.9+0.3\)

(35)\(7.3+1.4\)

(36)\(2.5+3\)

(37)\(1.5+2.4\)

(38)\(5.2+2.6\)

(39)\(3.8+5.2\)

(40)\(2.5+4.7\)

(41)\(6.3+1.6\)

(42)\(2.8+4.3\)

(43)\(4.2+2.5\)

(44)\(3.8+5.5\)

(45)\(4.9+3.2\)

(46)\(5.1+3.2\)

(47)\(1.6+1.8\)

(48)\(2.5+6\)

(49)\(4.9+3.9\)

(50)\(2.6+3.9\)

(51)\(0.6-0.2\)

(52)\(1-0.9\)

(53)\(1.2-0.9\)

(54)\(0.7-0.6\)

(55)\(1-0.5\)

(56)\(1.4-0.8\)

(57)\(7.7-3.4\)

(58)\(2.4-1.5\)

(59)\(8.3-5.3\)

(60)\(5-2.5\)

(61)\(8.6-4\)

(62)\(5.9-1.6\)

(63)\(6.2-4.8\)

(64)\(5.7-1.7\)

(65)\(8-3.4\)

(66)\(1.2-0.2\)

(67)\(4.3-1.2\)

(68)\(2.3-2\)

(69)\(5.3-4.6\)

(70)\(7.6-4\)

(71)\(4.3-0.3\)

(72)\(1.8-0.3\)

(73)\(0.4-0.2\)

(74)\(8.2-3\)

(75)\(1.1-0.1\)

(76)\(2-1.4\)

(77)\(2.6-0.6\)

(78)\(2.4-0.3\)

(79)\(5.2-1.4\)

(80)\(4.6-3.5\)

(81)\(7.3-4.6\)

(82)\(5.4-4.6\)

(83)\(6.8-1.6\)

(84)\(6.2-2.6\)

(85)\(4.5-0.2\)

(86)\(8.3-6.4\)

(87)\(6.8-0.3\)

(88)\(6-4.5\)

(89)\(6.3-3.5\)

(90)\(6.3-2.5\)

(91)\(5.8-1.3\)

(92)\(6.7-5.2\)

(93)\(8.4-5.2\)

(94)\(9.5-2.6\)

(95)\(5.6-2.9\)

(96)\(6.3-4.5\)

(97)\(4.2-2.5\)

(98)\(4.6-2\)

(99)\(9.3-3.6\)

(100)\(5-2.5\)

2.次の問いに答えなさい。

(1)A君は5.1km、B君は2.7km走りました。合わせて何km走ったか答えなさい。

(2)A君は5.1km、B君は2.7km走りました。どちらが何km多く走ったか答えなさい。

(3)A君は2.7ℓ、B君は1.8ℓの牛乳を飲みます。合わせて何ℓ飲んだか答えなさい。

(4)A君は2.7ℓ、B君は1.8ℓの牛乳を飲みます。どちらが何ℓ多く飲んだか答えなさい。

次の学習に進もう！

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