Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
52 + 20 = ______
3 × 10 = ______
87 − 10 = ______
45 + 20 = ______
4 × 10 = ______
7 × 10 = ______
11 + 20 = ______
13 + 20 = ______
21 − 10 = ______
67 + 10 = ______
53 + 10 = ______
65 + 10 = ______
34 + 10 = ______
48 − 10 = ______
54 + 20 = ______
29 + 20 = ______
56 + 10 = ______
8 × 10 = ______
2 × 10 = ______
51 − 10 = ______
