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
48 + 10 = ______
75 + 10 = ______
2 × 10 = ______
29 + 20 = ______
16 + 10 = ______
76 + 20 = ______
38 − 10 = ______
25 + 20 = ______
28 − 10 = ______
34 − 10 = ______
9 × 10 = ______
28 + 10 = ______
27 − 10 = ______
4 × 10 = ______
86 + 10 = ______
36 + 20 = ______
91 − 10 = ______
78 − 10 = ______
25 − 10 = ______
79 + 10 = ______
