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
26 + 20 = ______
87 + 10 = ______
28 + 10 = ______
50 + 10 = ______
69 + 10 = ______
24 − 10 = ______
2 × 10 = ______
70 − 10 = ______
16 + 20 = ______
8 × 10 = ______
73 + 10 = ______
64 + 20 = ______
80 + 10 = ______
25 + 10 = ______
56 − 10 = ______
45 − 10 = ______
91 − 10 = ______
59 + 10 = ______
75 + 10 = ______
7 × 10 = ______
