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
84 − 10 = ______
61 + 20 = ______
39 + 10 = ______
63 + 20 = ______
9 × 10 = ______
82 − 10 = ______
95 − 10 = ______
24 − 10 = ______
83 + 10 = ______
24 + 10 = ______
30 + 10 = ______
89 + 10 = ______
4 × 10 = ______
8 × 10 = ______
93 − 10 = ______
23 + 10 = ______
15 + 10 = ______
5 × 10 = ______
7 × 10 = ______
14 + 20 = ______
