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
4 × 10 = ______
5 × 10 = ______
9 × 10 = ______
88 + 10 = ______
7 × 10 = ______
39 − 10 = ______
31 + 20 = ______
79 + 10 = ______
70 + 20 = ______
82 + 10 = ______
3 × 10 = ______
48 + 10 = ______
1 × 10 = ______
44 + 10 = ______
94 − 10 = ______
37 − 10 = ______
2 × 10 = ______
80 + 10 = ______
45 − 10 = ______
60 − 10 = ______
