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
8 × 10 = ______
75 + 20 = ______
6 × 10 = ______
27 + 20 = ______
28 − 10 = ______
9 × 10 = ______
84 + 20 = ______
73 − 10 = ______
21 − 10 = ______
87 − 10 = ______
56 + 20 = ______
82 + 10 = ______
66 + 10 = ______
82 − 10 = ______
85 + 10 = ______
82 + 20 = ______
7 × 10 = ______
3 × 10 = ______
81 − 10 = ______
46 + 20 = ______
