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
9 × 10 = ______
32 + 20 = ______
60 + 20 = ______
59 − 10 = ______
88 + 20 = ______
3 × 10 = ______
91 − 10 = ______
93 − 10 = ______
8 × 10 = ______
40 − 10 = ______
6 × 10 = ______
52 − 10 = ______
98 − 10 = ______
49 + 20 = ______
82 − 10 = ______
43 + 10 = ______
87 + 10 = ______
23 + 10 = ______
53 + 20 = ______
4 × 10 = ______
