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
75 + 20 = ______
85 + 10 = ______
94 − 10 = ______
48 + 20 = ______
36 + 10 = ______
79 − 10 = ______
68 + 10 = ______
8 × 10 = ______
39 + 20 = ______
83 + 10 = ______
59 − 10 = ______
63 + 10 = ______
69 + 10 = ______
75 + 10 = ______
4 × 10 = ______
58 − 10 = ______
87 + 20 = ______
49 − 10 = ______
85 − 10 = ______
73 − 10 = ______
