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
82 + 10 = ______
8 × 10 = ______
20 + 20 = ______
92 − 10 = ______
44 + 20 = ______
1 × 10 = ______
58 + 20 = ______
42 + 10 = ______
9 × 10 = ______
2 × 10 = ______
61 − 10 = ______
95 − 10 = ______
43 + 10 = ______
55 − 10 = ______
55 + 20 = ______
59 − 10 = ______
71 + 10 = ______
75 − 10 = ______
34 + 20 = ______
41 + 20 = ______
