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
66 + 20 = ______
2 × 10 = ______
7 × 10 = ______
4 × 10 = ______
6 × 10 = ______
52 + 20 = ______
70 + 20 = ______
5 × 10 = ______
69 − 10 = ______
54 − 10 = ______
52 + 10 = ______
82 + 10 = ______
41 + 10 = ______
54 + 10 = ______
51 + 10 = ______
31 + 10 = ______
76 − 10 = ______
24 + 20 = ______
9 × 10 = ______
35 − 10 = ______
