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
75 − 10 = ______
22 + 10 = ______
25 + 20 = ______
4 × 10 = ______
42 + 10 = ______
40 + 10 = ______
77 − 10 = ______
8 × 10 = ______
2 × 10 = ______
43 − 10 = ______
59 − 10 = ______
55 + 10 = ______
9 × 10 = ______
23 + 10 = ______
24 + 10 = ______
5 × 10 = ______
22 − 10 = ______
60 + 10 = ______
17 + 20 = ______
18 + 10 = ______
