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 = ______
6 × 10 = ______
59 − 10 = ______
7 × 10 = ______
2 × 10 = ______
83 − 10 = ______
50 + 10 = ______
74 + 20 = ______
15 + 20 = ______
9 × 10 = ______
3 × 10 = ______
73 − 10 = ______
65 + 10 = ______
19 + 10 = ______
5 × 10 = ______
99 − 10 = ______
1 × 10 = ______
82 + 10 = ______
23 + 10 = ______
4 × 10 = ______
