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 = ______
54 + 20 = ______
55 + 20 = ______
39 + 20 = ______
86 + 10 = ______
68 − 10 = ______
73 − 10 = ______
19 + 10 = ______
56 − 10 = ______
38 − 10 = ______
97 − 10 = ______
50 − 10 = ______
21 + 10 = ______
54 − 10 = ______
9 × 10 = ______
3 × 10 = ______
72 + 20 = ______
38 + 10 = ______
24 + 10 = ______
95 − 10 = ______
