1. 640÷80= 2. 15×5= 3. 23×3= 4. 12×2×5= 5. 480÷80= 6. 16×5= 7. 27×3= 8. 90÷15= 9. 48÷4= 10.640÷16= 11.39÷3= 12.24×20= 13.32×3= 14.48÷16= 15.12×8= 16.27×3= 17.56÷14= 18.24÷8= 19.14×2= 20.83－45= 21.560÷80= 22.96÷24= 23.40÷20= 24.40×30= 25.37＋26= 26.76－39= 27.605＋59= 28.30×23= 29.12×8= 30.27＋32= 31.48＋27= 32.4500×20= 33.73＋15 = 34.120×600 = 35.200×360= 36.6800×400= 37.280＋270= 38.4×2500= 39.6000÷40= 40.5×1280= 41.310－70= 42.400×14= 43.470＋180= 44.1000÷25= 45.160×600= 46.20×420= 47.290×300= 48.8100÷300= 49.7600÷200= 50.7600÷400= 51.680＋270= 52.980÷14= 53.4200÷30= 54.6×1300= 55.1300×50= 56.200×48= 57.930－660= 58.530＋280= 59.9200÷400= 60.840÷21= 61.180×500= 62.8000÷500 = 63.1900÷20= 64.200×160= 65.8700÷300= 66.300×330= 67.3×1400= 68.7000÷14= 69.600÷12= 70.9600÷80= 71.140×300= 72.8800÷40= 73.9600÷800= 74.750－290= 75.5×490= 76.760×20= 77.7500÷500= 78.370×200= 79.650÷13= 80.8600－4200= 81.240×4= 82.640÷80= 83.15×10= 84.12×11= 85.160×30= 86.220×40= 87.104×5= 88.4500÷50= 89.120×2= 90.90÷30= 91.270÷30= 92.270×30= 93.84÷21= 94.76÷9= 95.66÷7= 96.100－54= 97.123＋15= 98.360÷4= 99.55÷5= 100. 32×6= 101. 200÷40＝ 102. 180÷30= 103. 240÷40= 104. 35×2= 105. 140×7= 106. 13×6= 107. 280×3= 108. 350×2= 109. 50×11= 110. 250×6= 111. 7200+900= 112. 410-201= 113. 125×8= 114. 48×20= 115. 6600÷600= 116. 390+140= 117. 11×80= 118. 24×50= 119. 3600÷400= 120. 530－70= 121. 420－90= 122. 9600÷30= 123. 7×700= 124. 203+98= 125. 5600÷700= 126. 4800÷12= 127. 3500÷7= 128. 370＋560= 129. 520＋490＝ 130. 450－90＝ 131. 80＋330＝ 132. 70×700＝ 133. 7000÷70＝ 134. 4000÷80＝ 135. 2400÷200＝ 136. 420－90＝ 137. 170＋320＝ 138. 520－260＝ 139. 910－190＝ 140. 35×200＝ 141. 22×200＝ 142. 8800÷40...
