四年级数学上册运算定律练习题.docxVIP

四年级数学上册运算定律练习题 一、加法定律 1. 计算下列算式： a) 16 + 3 + 7 = ? \(\color{red}{16 + 3 + 7 = 26}\) b) 35 + 12 + 8 = ? \(\color{red}{35 + 12 + 8 = 55}\) c) 24 + 15 + 9 = ? \(\color{red}{24 + 15 + 9 = 48}\) 2. 填空题： a) 27 + 8 + \_\_ = 40 \(\color{red}{27 + 8 + \_ = 40}\) b) 42 + \_\_ + 9 = 73 \(\color{red}{42 + \_ + 9 = 73}\) c) \_\_ + 14 + 5 = 36 \(\color{red}{\_ + 14 + 5 = 36}\) 二、减法定律 1. 计算下列算式： a) 52 - 7 = ? \(\color{red}{52 - 7 = 45}\) b) 84 - 15 = ? \(\color{red}{84 - 15 = 69}\) c) 109 - 42 = ? \(\color{red}{109 - 42 = 67}\) 2. 填空题： a) \_\_ - 9 = 24 \(\color{red}{\_ - 9 = 24}\) b) 68 - \_\_ = 53 \(\color{red}{68 - \_ = 53}\) c) 82 - 28 = \_\_ \(\color{red}{82 - 28 = \_}\) 三、乘法定律 1. 计算下列算式： a) 3 * 5 = ? \(\color{red}{3 \times 5 = 15}\) b) 6 * 4 = ? \(\color{red}{6 \times 4 = 24}\) c) 7 * 8 = ? \(\color{red}{7 \times 8 = 56}\) 2. 填空题： a) 9 * 7 = \_\_ \(\color{red}{9 \times 7 = \_}\) b) \_\_ * 6 = 42 \(\color{red}{\_ \times 6 = 42}\) c) 5 * \_\_ = 30 \(\color{red}{5 \times \_ = 30}\) 四、除法定律 1. 计算下列算式： a) 45 ÷ 5 = ? \(\color{red}{45 \div 5 = 9}\) b) 72 ÷ 8 = ? \(\color{red}{72 \div 8 = 9}\) c) 81 ÷ 9 = ? \(\color{red}{81 \div 9 = 9}\) 2. 填空题： a) 63 ÷ \_\_ = 7 \(\color{red}{63 \div \_ = 7}\) b) \_\_ ÷ 9 = 4 \(\color{red}{\_ \div 9 = 4}\) c) 54 ÷ 6 = \_\_ \(\color{red}{54 \div 6 = \_}\) 以上是《四年级数学上册运算定律练习题》的答案，希望能帮助到你！