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
59 − 10 = ______
78 + 10 = ______
5 × 10 = ______
2 × 10 = ______
45 + 20 = ______
4 × 10 = ______
46 + 20 = ______
86 + 20 = ______
82 + 10 = ______
81 − 10 = ______
17 + 10 = ______
56 − 10 = ______
25 − 10 = ______
84 + 20 = ______
76 + 20 = ______
3 × 10 = ______
66 − 10 = ______
87 + 10 = ______
11 + 10 = ______
1 × 10 = ______
