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
71 + 20 = ______
35 − 10 = ______
42 + 20 = ______
96 − 10 = ______
16 + 20 = ______
25 − 10 = ______
69 + 10 = ______
8 × 10 = ______
49 + 10 = ______
52 − 10 = ______
57 − 10 = ______
64 + 20 = ______
82 + 10 = ______
99 − 10 = ______
85 + 20 = ______
90 − 10 = ______
65 + 10 = ______
3 × 10 = ______
44 + 10 = ______
70 + 10 = ______
