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
7 × 10 = ______
98 − 10 = ______
5 × 10 = ______
89 + 20 = ______
3 × 10 = ______
39 − 10 = ______
9 × 10 = ______
87 + 20 = ______
6 × 10 = ______
22 + 20 = ______
51 + 20 = ______
8 × 10 = ______
38 − 10 = ______
14 + 20 = ______
84 + 10 = ______
82 + 10 = ______
62 − 10 = ______
73 + 20 = ______
21 + 20 = ______
54 + 10 = ______
