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
31 − 10 = ______
32 + 20 = ______
73 + 10 = ______
4 × 10 = ______
8 × 10 = ______
9 × 10 = ______
82 + 20 = ______
77 − 10 = ______
89 + 10 = ______
86 + 20 = ______
62 − 10 = ______
5 × 10 = ______
74 + 10 = ______
75 − 10 = ______
44 + 10 = ______
28 − 10 = ______
59 + 20 = ______
88 + 20 = ______
30 + 20 = ______
59 − 10 = ______
