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
28 − 10 = ______
39 + 10 = ______
8 × 10 = ______
97 − 10 = ______
34 + 20 = ______
57 − 10 = ______
3 × 10 = ______
22 + 10 = ______
83 + 20 = ______
82 + 20 = ______
34 − 10 = ______
86 + 20 = ______
31 + 10 = ______
40 − 10 = ______
56 − 10 = ______
32 − 10 = ______
78 + 10 = ______
83 + 10 = ______
88 + 20 = ______
43 + 10 = ______
