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【例】甲有3张5角币、2张2角币,乙有2张5角币、4张2角币,丙有4张5角币、3张2角币。三人一共有多少钱?【解法一】先分别求出每人各有多少钱,再将三人的钱数相加求出共有多少钱。甲的钱数:3×5=15(角)2×2=4(角)15+4=19(角)乙的钱数:2×5=10(角)4×2=8(角)10+8=18(角)丙的钱数:4×5=20(角)3×2=6(角)20+6=26(角)共有钱数:19+18+26=63(元)【解法二】先将三人的5角币合在一起,再将三人的2角币合在一起,最后将两
Example A has 3 5-point coins and 2 2-point coins. B has 2 5-point coins, 4 2-point coins, 4 4-point coins and 3 2-point coins. How much is a total of three? 【Solution】 First, find out how much each person has, and then sum up the sum of three people to find out how much money. A: The amount of money: 3 × 5 = 15 (angle) 2 × 2 = 4 (angle) 15 + 4 = 19 (angle) B money: 2 × 5 = 10 (angle) 4 × 2 = 8 10 + 8 = 18 (angle) C money: 4 × 5 = 20 (angle) 3 × 2 = 6 (angle) 20 + 6 = 26 ) [Solution 2] The first three of the five currency coins together, then the three of the two dime together, and finally the two