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
3 × 10 = ______
78 + 10 = ______
68 − 10 = ______
47 − 10 = ______
39 + 10 = ______
45 − 10 = ______
48 + 10 = ______
56 − 10 = ______
1 × 10 = ______
70 + 10 = ______
95 − 10 = ______
53 + 20 = ______
43 − 10 = ______
73 + 20 = ______
82 + 10 = ______
79 + 10 = ______
51 + 10 = ______
66 + 20 = ______
38 + 10 = ______
27 + 10 = ______
